Microsoft Word - 3.1 Hinton (579-605) - REVIEW1.doc
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
On Appeals to Non-existent Authorities
as Arguments from Analogy
MARTIN HINTON
Faculty of Philology
University of Lodz
ul. Pomorska 171/173
90-236, Lodz
Poland
martin.hinton@uni.lodz.pl
Abstract: Herein, I consider argu-
ments resting on an appeal to a non-
existent authority as a species of
argument from authority, and ulti-
mately show them to be reliant on
arguments from analogy in their
inferential force. Three sub-types of
argument are discussed: from authori-
ties as yet unborn, no longer living, or
incapable of ever doing so. In each
case it is shown that an element of
arguing from analogy is required
since there can be no direct evidence
of any assertions of the source. In
conclusion, it is suggested that such
steps of analogy are employed fre-
quently in traditional arguments from
authority.
Résumé: Ici, je considère les argu-
ments fondés sur un appel à une
autorité inexistante comme une
espèce d'argument d'autorité et je
montre en fin the compte que leur
force inférentielle repose sur des
arguments par analogie. Je discute de
trois sous-types d’arguments: ceux
d'autorités encore à naître, d’autorités
ne vivant plus et d’autorités incapa-
bles de vivre. Dans chaque cas, il est
démontré qu'un élément d'argumenta-
tion par analogie est requis puisqu'il
ne peut y avoir de preuve directe
d'aucune affirmation provenant de la
source. En conclusion, je suggère que
des arguments par analogie sont
fréquemment utilisés de cette façon
dans les arguments traditionnels
d’autorité.
Keywords: appeal to expert opinion, appeal to authority, ad verecundiam, non-
existent authorities, argument schemes, originalism
1. Introduction
The argument from authority has received a good deal of attention
in recent years from argumentation scholars, much of it relating to
580 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
the different types of authority it is possible for an individual or
institution to possess, and what characteristics such an authority
must demonstrate in order to be considered an expert (Goodwin
2011, Quast 2018), much also to how strong such arguments can
be (Hinton 2015, Botting 2018, Liao 2020). Despite the fact that
such appeals are often traced back to the Lockean fallacy of ad
verecundiam, which is really something quite different, the appeal
to authority is, in fact, one of the most important, and essential,
defeasible argument forms in human interaction: the entire founda-
tion of education, of medicine, and, more generally, the division of
labour which makes advanced society possible, rests upon the idea
that certain individuals can be trusted to provide information
which is reliable and can be safely acted upon; and the acceptance
of other forms of authority underpins much of our social structure.
No author, then, claims that appeals to authority are inherently
fallacious—only that they might be if the source has the wrong
kind of authority, or, indeed, none at all.
In this paper, I turn attention to one particular variety of appeal
to authority which might well be thought especially vulnerable to
accusations of fallacy, and that is the appeal to authorities which
do not actually exist. I look at how such appeals are used in natural
argumentation and investigate their full structure, comparing it to
that of the standard appeal to an actual source, in order to consider
whether they can ever constitute good arguments.
Such appeals seem to come in three varieties: to the as yet un-
born, to the already dead, and to those who will never be either—
the mythical, the legendary, and the fictional. There is a possibility
for overlap between these groups: the dead may be mythologised,
creating a fictional figure on the basis of a historical personage;
and perhaps the unborn may be too, via prophesy of a messiah or
chosen one. Indeed, the Messiah of Jewish tradition may be placed
in any of the three groups, depending on one’s perspective and
beliefs.
The aims of the paper are, then, twofold: there is an examina-
tion of a form of argument, which I take to be quite popular, and
of which, certainly, examples are plentiful and easily found, but
which I suspect might more usually be dismissed as a rhetorical
device rather than treated as a real argument. There is also, per-
Non-existent authorities & arguments from analogy 581
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
haps more importantly, a reflection upon what light the structure
of such reasoning might throw onto the wider class of arguments
from authority.
2. Arguments from Authority
The literature on arguments from authority is extensive and wide-
ranging, and I have no intention of trying to cover all of the angles
from which they have been approached in recent research. Certain
considerations which have direct impact on the discussion of
arguments from non-existent authorities, the central concern of
this paper, must, however, be examined.
Firstly, there have been a number of works making clear the
distinction between the various types of authority which an indi-
vidual may possess, with the most important division separating
deontic from epistemic authority. Jean Goodwin distinguishes
three main categories of authority and notes their relationship to
Locke’s famous fallacy: “the authority of command, the authority
of expertise and the authority of dignity—the real ad verecundi-
am” (1998, p. 278). This last is frequently ignored: Walton focus-
ses on the separation of administrative and cognitive authority
(1992, p. 48), recognising that they are sometimes found in the
same individual. The attention of argumentation researchers has
mainly been on the second of these, the cognitive or epistemic
authority, and that work is complemented by the vast wealth of
studies into experts and expertise conducted by social epistemolo-
gists (e.g., Anderson 2011, Brennan 2020, Collins and Evans
2007). These lines are not always as distinct as they are sometimes
painted, and the examples presented in the section below illustrate
how the mix of epistemic and deontic authority is particularly
potent when the authority is not a living person: even if the source
is considered authoritative for reasons which might be called
epistemic, the very fact of being cited as a source on the basis of
reputation, image, or tradition, leads towards a deontic weight’s
being placed on their purported opinion. This leads into the next
point.
Secondly, I make it clear at this juncture that I shall not engage
in discussion of what makes a source an expert, how experts may
be evaluated, or how compared with one another. These are issues
582 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
which I have addressed elsewhere (Hinton 2018a, 2018b, 2019) as
have several of those cited above as well as the likes of Goldman
(2001), Shanteau et al. (2002), and, more recently, Collins (2018)
and Watson (2019), among many others. An expert is understood
as someone in possession of epistemic or cognitive authority:
someone regarded as an expert by whomever is making the argu-
ment. As I noted above, this does lead to many questions concern-
ing the way in which they have obtained that authority and how
others may recognise it, but these questions, while interesting and
important, are irrelevant to an examination of the form of the
argument: in the arguments considered herein, it is claimed that a
source is an authority despite the fact that that source does not
exist. What is most interesting here is to examine how such claims
are possible, and upon what manner of reasoning they lie, rather
than to investigate again the concept of expertise and the status of
experts. Indeed, the structure of the argument itself is not much
affected by exactly what is meant by ‘expert’, only the way of
evaluating and responding to it.
Thirdly, one point which does not appear to have received a
great deal of attention in the literature is the distinction between
the source as person, and the source as statement. This is vital for
our purposes here: all of the examples considered are of appeals to
a person, precisely because the source as statement does not exist.
I do not take a claim based on the writings of Aristotle to be an
appeal to a non-existent authority simply because Aristotle is no
longer alive: it would only be of interest here if it were a claim
based on what Aristotle would have said on a certain question if he
had said anything, when, in fact, he did not. One important result
of making this distinction is the impact that it has on difficult
questions concerning the relativity of expertise and whether or not
figures from the past can be considered experts or not, given that
their field of knowledge may have advanced beyond all recogni-
tion (see Seidel 2014). By keeping the person and their pro-
nouncements separate we can comfortably say that Isaac Newton
was a great expert but some of his work is no longer authoritative,
or that the opinion of the cleverest child in the class is authorita-
tive in a particular case, despite her not qualifying as an expert to
society at large.
Non-existent authorities & arguments from analogy 583
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
In the matter at hand, this distinction allows us to keep apart the
extant statements of historical individuals and their wider perso-
nae. It should be acknowledged that the same could be applied to
living authorities: that there is a difference between appealing to
them and appealing to what they have said. Appeals to what living
people might say, if they were asked, are not considered in this
paper for two reasons: that the intention of the arguer is likely to
be very different (which is somewhat vague) and that the critical
questions one would ask and general procedure of evaluating the
argument would be very different (which, I think, is clear and
obvious). I shall return to this species of argument in the conclu-
sion, however.
Finally, although I have criticised Walton’s scheme for argu-
ments from expert opinion in the past (Hinton 2018a), that criti-
cism centred largely on the critical questions (see also Wagemans
2011, p. 334). The form of the argument itself is fairly straight-
forward, and I employ Walton’s elaboration of it in what follows
as the one most familiar to readers. I also argued in the paper just
cited that the distinction between arguments from expert authori-
ties and those from other sources in a position to know is often
unhelpful as it puts too much emphasis on the semantics of the
word ‘expert,’ where attention would be better placed on the rele-
vance of the testimony offered to the actual case at hand.1 The
scheme that I offered then for a generalised argument from testi-
mony is of no use here, however, since we are dealing with ap-
peals to authorities which have not provided a direct testimony. It
is always important to bear in mind when discussing Walton’s
approach that he was particularly concerned with expert witnesses
in a court of law—that focus goes some way to explaining why his
scheme and questions may seem inadequate in other contexts. For
the purposes of this paper, the well-known argument scheme will
certainly suffice, and the word ‘expert’ will be understood in a
broad and non-technical sense to cover a range of figures pos-
sessing varying kinds of authority.
1 This question is considered to a greater degree in the extended critical ques-
tions listed in Walton et al. (2008).
584 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
3. Non-existent authorities
In this section, I shall try not to get bogged down in metaphysical
considerations, but rather to put forward what I conceive will be
accepted as a simple, everyday view of existence and non-
existence, sufficient for our purposes. It will be seen in due course,
that deeper philosophical investigation into this matter would be
unlikely to yield any greater enlightenment on the point at hand.
For our purposes here, then: the non-existent is that which does
not exist in the present, but which we can name meaningfully in
speech; it may have existed in the past; may be expected to exist in
the future; or may be an entity which can be referred to, despite its
not being considered part of the physical world, a literary charac-
ter, for instance. Non-existent entities to which an arguer might
appeal as an authority can, therefore, be divided into the unborn,
the already dead, and the fictional.
3.1. The unborn
One form of argument which can be particularly awkward to
combat is the appeal to future generations. Perhaps the most fa-
mous instance of this is the well-known First World War recruit-
ment poster bearing the question ‘Daddy, what did you do in the
Great War?’ The force of that argument—that one should act now
so as to avoid shame and embarrassment later on—is not based on
authority, but an appeal to pride or feelings of guilt; it shares,
however, important features with other such appeals, in particular,
that one cannot say for sure that the person as yet unborn, or, at
least, not yet able to form an opinion on the matter, will not say
what is being suggested. One’s children might ask such questions,
and what then? If one has no children now, well, one might in the
future—especially if one avoids the fighting. Because the premises
cannot be disproved, a seed of doubt is sown which cannot be dug
up. Technically speaking, the burden of proof is on the person
making the claim—the author of the poster—to show that it is
likely; but in reality, the claim is made and the possibility that it
might be true is left to linger, in the hope that it will be enough to
provoke the desired response. How much this is a genuine argu-
ment and how much a psychologically manipulative move, and
Non-existent authorities & arguments from analogy 585
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
whether a distinction between them can sensibly be drawn, I leave
open at this point.
This type of argument is related to the ‘appeal to future genera-
tions’ which is often invoked as a reason to act on climate change
(see e.g., Lawrence 2013, Gonzalez-Ricoy and Rey 2019). This
appeal generally seems to go unchallenged in public debates, even
if it doesn’t actually motivate action, but the degree to which
current people have a moral responsibility to future people is, I
think, an interesting and unclear issue.2 This is not the place for a
discussion of inter-generational ethics, but this common form of
arguing is worth mentioning as another variety of appeal to the
unborn. There is a sense in which such arguments commit the
error which Locke originally referred to as the ad verecundiam, in
that we are encouraged to consider the opinions of the unborn as it
would be morally shameful to ignore them.3
Still, the people of the future to whom we appeal don’t have to
be those we personally care for: they may also be those whose
opinions we (shall) respect, those who will have more information
than we do currently, those who will judge us, not for our personal
courage, but for our reason. These are the authorities of the future
whom we hope will approve of what we have done.
In a recent Guardian article, British historian Charlotte Lydia
Riley noted with some discomfort that: “The appeal to the future
historian is a common trope in times of crisis,” but a strategy
which can easily be seen through:
What we want is to be proved right. This is the other function of
the “historian of the future”: to reassure us that our interpretation
is correct, and that we truly understand what is going on. When
people say that historians of the future will argue X, Y or Z, what
they are doing is arguing X, Y or Z themselves, but clothing that
argument in the moral and intellectual authority of some mythic
future scholar (Riley 2020).
2 For some recent discussion on this topic see Jensen (2015), Karnein (2016),
and Sanklecha (2017); or the classic account in Parfit (1984, pt.4).
3 My thanks to an anonymous reviewer for this point.
586 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
Riley shows good insight into argumentation strategy here. It is
easy to see why young historians would be unhappy about being
put in this position. It is also a move which undercuts much of the
traditional approach to assessing claims based on cognitive author-
ities, or experts. Walton’s well-known six basic critical questions
(Walton 2006, p. 750) for the argument from expert opinion are all
rendered impotent since each of them refers to characteristics or
acts of the expert in question or to that expert’s peers, yet, in this
case, none of these people exists.
It is easy to find examples of what Riley is talking about. On
Democrats who brought about the first set of impeachment pro-
ceedings against Donald Trump:
Historians in the future may judge them far more harshly for abus-
ing the impeachment power in the Constitution. That provision
was not intended to allow 285 members of Congress—a simple
House majority and two-thirds of senators—to remove a duly
elected president for partisan reasons or over matters of style, no
matter what his margin of victory in the last election (von Spakov-
sky 2020).
And on Republicans who saw them fail:
However the Republicans try to spin this, ultimately, history will
judge them furiously for their willingness to see the Constitution,
and its checks on unbridled presidential power, shredded simply to
protect their man in the White House from the consequences of
his actions (Abramsky 2020).
It seems that historians of the future will be harsh on the Demo-
crats and furious with the Republicans, which may seem fair over-
all, but shows how this argument form can be used by anyone to
defend any position. It is a claim we can make without any respon-
sibility, we do not have to check our facts, we do not have to show
the credentials of our source. That the historians of the future are
always right in their judgements is taken as read, though as Riley
points out ruefully “the people who invoke historians of the future
are less keen on listening to actually existing historians today”
(Riley 2020).
Non-existent authorities & arguments from analogy 587
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
The appeal to unborn authorities obviously has something in
common with the appeal to existing authority, in that it rests upon
an assumption that since what those with cognitive authority say is
generally true, we should believe what they say in particular in-
stances. Yet, the argument is clearly very different, and, as stated
above, the traditional critical questions for appeals to expertise are
of no use in its evaluation.
Walton’s scheme (Walton, 1997, p. 223), which altered a little
over time, the warrant often remaining unstated, looks something
like this:
Source Premise: Source E is an expert in subject domain S con-
taining proposition A.
Assertion Premise: E asserts that proposition A (in domain S) is
true (false).
Warrant Premise: If source E is an expert in subject domain S
containing proposition A, and E asserts that proposition A (in
domain S) is true (false), then A may plausibly be taken to be
true (false).
Conclusion: A may plausibly be taken to be true (false).
This can be adapted for our purposes to say:
Source Premise: Source E will be an expert in subject domain S
containing proposition A.
Assertion Premise: E will assert that proposition A (in domain S)
is true (false).
Warrant Premise: If source E will be an expert in subject domain
S containing proposition A, and E will assert that proposition A
(in domain S) is true (false), then A may plausibly be taken to be
true (false).
Conclusion: A may plausibly be taken to be true (false).
All critical questions concerning E’s being an expert are moot: the
person being referred to is simply ‘whoever is an expert in the
future.’ That person is, by definition, an expert, in S, containing A.
The question that counts, therefore, is:
CQ: What evidence exists that suggests E will assert that A?
588 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
There will be a strong chance that the response here will be to beg
the question and say ‘because E will be an expert.’ In that case, the
experts of the future simply are the ones who will state that which
the arguer believes they should state. A more encouraging line
would be to look for similar judgements made by current experts
and argue from analogy. The chances of success here are limited
though. In the case of historians, as Riley notes, there is usually no
consensus opinion among the experts on the events of the past, so
if any analogy is useful, it is likely to be one that argues against
the idea of invoking future historians, on the basis that they will
certainly disagree amongst themselves. These considerations make
one tempted to dismiss the very possibility that an argument from
future expert opinion could ever be a good one.
Still, this analysis shows that if, and it’s a big if, the proponent
of the appeal to future historians, or others with authority as yet
unbestowed or unearned, can provide good reasons to think that
they will assert that A, then his argument does carry weight.
Whether or not it has any effect on actions in the present will
depend, however, on whether those doing the acting are interested
in their future representation in history books or not.
3.2. The already dead
Here, there is a need, of course, as described in section 2, to dis-
tinguish between the dead who remain genuine authorities, exist-
ing, in a manner, through their extant writings or recorded utter-
ances, and the dead invoked as probably approving or disapprov-
ing of something on which they never actually pronounced an
opinion, via a kind of ad hominem appeal to their person. What I
am focussing on here is appeals to what the dead would have
thought or said on points which they did not address in any known,
extant, utterances. In colloquial English, such appeals are often
formed with the constructions ‘x would have been
proud/delighted’ or ‘x must be spinning in his grave.’
This latter affliction seems to particularly affect deceased fig-
ures from football and politics: “George Best would turn in his
grave if he knew how the Northern Ireland players are relaxing”
(Dillon 2016) and “Shankley would turn in his grave to see what
football has become” (ArthurThistlewood, Guardian Sport 2020).
Non-existent authorities & arguments from analogy 589
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
In both of these cases disapproval of behaviour is being expressed,
and support for the position taken is provided by reference to the
memory of past heroes. The second example refers to Bill Shank-
ly, not only a very successful manager of Liverpool Football Club
(1959-74), but a man who frequently demonstrated respect and
concern for the club’s fans during his career, and who has become
symbolic of the less commercialised era of professional associa-
tion football. In the first, the phrase is actually being used some-
what ironically: Best, generally considered the greatest player to
emerge from anywhere in the British Isles, was also famous for his
partying lifestyle and, in particular, indulgence with alcohol. The
article in which this phrase was used as a headline was actually
pointing out how modern players relax in rather more professional
ways, which are less interesting for the tabloid press. The disap-
proval, then, is of a nuanced nature.
Another interesting example concerns Napoleon Bonaparte:
France's honours system was branded a laughing stock this week
after Mexican-born sex symbol Salma Hayek was made a knight.
It led to one former minister refusing the same award, with others
suggesting the 45-year-old's new status would see Napoleon Bo-
naparte 'turning in his grave’ (Allen 2012).
This is intriguing because it isn’t at all clear that Bonaparte would
be generally considered as an authority on whom modern France
should be honouring, and, indeed, many people, in France and
beyond, might see the extension of high honours to include a
woman of Lebanese-Mexican descent as a positive step.
One final example shows a slightly different use: “Adam Smith
would turn in his grave, if he knew what was being said in his
name” (Harrison 2016). Here, Adam Smith is being cited as an
expert on what Adam Smith would say, which seems reasonable
—that is to say, there is little doubt that Smith was an authority on
what can be said in Smith’s name: the question is whether Harri-
son can be considered an expert on how Smith would have exer-
cised that authority.
These examples with the unpleasant image of a revolving
corpse are not, of course, the only way to invoke the supposed
opinions of the dead. One thing which links them all is their status
590 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
as almost ‘legendary’ figures, despite their being historical. This
status gives them authority and has the persuasive influence of
attracting anyone who wishes to be associated with that particular
legend. This brings these examples close to the type discussed in
the next sub-section below. Other ways of referring to dead au-
thorities, however, will almost inevitably cite a particular instance
of something they said or did, making the source of the authority
extant; yet, that instance can only be, at best, analogically related
to the matter at hand.
These cases have clear differences, but they are united by the
degree of reconstruction necessary to turn the authority premise
into an actual argument. For instance, the argument is: Napoleon
was an authority on the dignity of France, and he would have said
that honouring Hayek is wrong, so it is wrong. All of that must be
extrapolated and inferred from the simple statement that he is
spinning in his grave about the honour.
One intriguing and more serious category of arguments based
on the views of the departed which includes both citation of an
actual text and a degree of interpretation as to the wishes of its
writer is the legal tradition of originalism, often invoked in discus-
sions of the United States Constitution. Solum (2011) points out
that there is a degree of disagreement about the meaning of this
term and that its use has evolved somewhat over time, but, with a
pleasing circularity, we can take the original definition of the
‘framer’ of the concept as authoritative for our purposes:
By “originalism” I mean the familiar approach to constitutional
adjudication that accords binding authority to the text of the Con-
stitution or the intentions of its adopters (Brest, 1980, p. 204).
The difference between the text and the intentions is so wide from
our perspective here that it is hard to see how the two could be
contained within one ‘ism,’ nonetheless, the general idea that the
intentions of the original writers are authoritative in the interpreta-
tion of constitutional, and, presumably, other types of law looks
like an entire theory based upon appeals to non-existent authori-
ties. It seems at first glance an obvious matter that little can be
known for sure of those intentions. A certain amount of investiga-
Non-existent authorities & arguments from analogy 591
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
tive work into the individual’s life and other writings, however, as
well as consideration of the norms of the time, might yield rele-
vant information. What is of more interest is the very suggestion
that the writer of the law maintains the authority to determine its
meaning long after his death, even when the law is being applied
to situations which he could not have predicted. It is not a simple
matter to say whether this authority is cognitive: that the writer
knows what was meant, or deontic: that the writer was entrusted
with the task of law-making. The whole situation is complicated
by the need to include the authority of those in the legislature who
granted the text its legal power.
Perhaps the most infamous example of this kind of thinking is
found in the judgement of the US Supreme Court in the Dred Scott
v. Sandford case. In point I.9 of the decision, the judges declared
that:
The change in public opinion and feeling in relation to the African
race, which has taken place since the adoption of the Constitution,
cannot change its construction and meaning, and it must be con-
strued and administered now according to its true meaning and in-
tention when it was formed and adopted (Scott v. Sandford, 1857,
p. 394).
They used the belief that the framers of the constitution did not
intend for anyone of African race to be granted citizenship of the
US to argue that Scott was not legally a citizen and, therefore, had
none of the privileges or rights of citizenship. This in spite of their
acknowledgement that attitudes had already shifted by then. The
paramount authority granted to the framers here is actually in
contradiction to the words of the text which quite clearly state that
everyone’s included. The argumentation employed is quite fasci-
nating and also involves an ad ignorantiam argument based on the
fact that the framers did not say anywhere that black people could
be citizens, something which Abraham Lincoln himself exposed as
fallacious (Gerber, 2014, p. 10).
Naturally, there is a great tradition of literature in legal theory
which considers the soundness of such arguments with which we
have no time or space to concern ourselves; this example does
show, however, that even the most serious of cases may be decid-
592 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
ed by appealing to authorities who are dead and whose actual
opinion on the matter at hand we can only piece together tentative-
ly by granting relevance to other information not directly ap-
proaching the question.
These types of argument, if the necessary reconstruction is al-
lowed, can be expressed in the following argument scheme
adapted from Walton:
Source Premise: Source E was an expert in subject domain S con-
taining proposition A.
Assertion Premise: E would have asserted that proposition A (in
domain S) is true (false).
Warrant Premise: If source E was an expert in subject domain S
containing proposition A, and E would have asserted that prop-
osition A (in domain S) is true (false), then A may plausibly be
taken to be true (false).
Conclusion: A may plausibly be taken to be true (false).
The critical questions in this case differ from those above concern-
ing the unborn: here the source premise can be meaningfully ex-
amined and the credentials which the deceased held can be as-
sessed in more or less the same way as those of a living source,
depending on how long ago that person lived and how much is
known about their life.
CQ 1: Was E an expert in S containing A?
The difficulty is that, as the examples illustrate, such arguments
often refer to a source of moral rather than epistemological author-
ity.
Assuming that a reasonable claim can be made that the authori-
ty was a genuine one, the arguer employing this source now faces
the more difficult task of answering the critical question analogous
to the one above:
CQ 2: What evidence exists that suggests E would have asserted
that A?
Non-existent authorities & arguments from analogy 593
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
Possible responses here would include the claim that A is in ac-
cordance with general principles expressed by E, or that A is anal-
ogous to assertions made by E whilst still alive. In cases where a
general principle is clearly expressed in the recorded utterances of
the source, the source can be treated as, in fact, existent. For in-
stance, if in Napoleon’s verified writings, he stated that no woman
from Mexico should ever be given an honour by France—or simp-
ly no woman, or no-one from Mexico—those writings would be an
existing source. What we are concerned with here is appeals to
sources which do not exist: to opinions which are assumed on the
basis of what is known about the deceased person, but cannot be
verified. In such cases, the best argument that can be made is one
of analogy—in similar cases the source did say similar things.
There are two more crucial critical questions, however:
CQ 3: Is there reason to believe that the opinion of E would not
have changed, given the advances of the intervening period?
CQ 4: Might E have had conflicting principles which would un-
dermine the likelihood of the assertion?
In the first case, these advances could obviously refer to scien-
tific discoveries of which the source was not aware, but, more
controversially, the same might also apply to social progress, as in
the Dred Scott case. So, while a geocentrist might cite various
respected early astronomers as likely to agree with his view of the
solar system, CQ 3 would throw up the fact that any serious as-
tronomer entering the debate today would know of the evidence
showing that the solar system is heliocentric, meaning that the
source, if a credible one, would certainly have changed his opinion
by now. Similarly, a good many writers of the past made highly
dubious remarks concerning issues of race, which, given that they
showed great insight and intelligence in other fields, were likely
the result of an ignorance and carelessness which, one hopes, no
educated person would show today. Making claims about what
they would say if they were alive today based on the views ex-
pressed then seems a dubious practice—how much they may be
594 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
forgiven for what they did say at that time, however, is a matter of
debate.4
3.3. The fictional
There are a number of possible sub-types here, all of which lead
the evaluator in slightly different directions. The source appealed
to may be a fictional character, either as personality: ‘what would
Sherlock Holmes do?’ or as direct source ‘Sherlock Holmes once
said…’ which then raises the question of whether the latter in-
stance can be considered a case of appealing to the authority of
Conan Doyle. As well as already ‘existing’ fictional characters,
there are ad hoc inventions: ‘my Great Aunt Nelly always said…,’
‘there’s an old Chinese proverb …,’ or, more seriously, ‘some
scientists say…’ which, prima facie, look hard to defend. Then
there are the mythological, the legendary, and the divine. By leg-
endary, I understand those who are at least presumed to have been
real characters, but whose reputations are based on stories told
about them, rather than their own recorded utterances. At one end
of that scale would be the likes of King Arthur, who, since kings
certainly existed in the time and place he is said to have lived, may
well have been based on an actual person, but about whom so little
can be said for sure that he is little more than myth, and at the
other, say, the Buddha, who is considered to be a real historical
person and probably said and did much of what is claimed about
him, but whose life-story is still more legend than historical rec-
ord. The truly mythical, I understand as those whose exploits are
unconnected with the reality of human experience, such as the
Greek heroes, or Beowulf: even if there were real people at some
point in history who bore the names Achilles and Odysseus, they
could not actually have done the things for which those names are
now famous. This brings us to the most delicate of the sub-types:
the divine. The Gods of the ancient Greeks, Norsemen and Egyp-
tians we are happy to describe as part of their mythology, although
they were once part of a, presumably, sincere religion; and even
4 See the recent decision to rename the David Hume Tower at Edinburgh Uni-
versity in the light of Hume’s very explicit claims of white supremacy (Richards
2020).
Non-existent authorities & arguments from analogy 595
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
the most committed believer will accept that other sects attach
themselves to false Gods, who are, as it were, fictional. Thus, even
for the theist, there is clearly a category of appeals to non-existent
deities. For the non-believer, all divine entities are myths. That
does not mean that they are automatically excluded from playing a
role in argument, however; but it does mean that their role is
equivalent to that of an acknowledged fictional character if they
are appealed to in their divinity, or to that of a deceased personage
if their actual recorded life or work is the relevant source. These
are subtle distinctions, and Jesus provides the best example: Jesus
may be appealed to as the son of God, as God Himself; or he may
be appealed to as an historical preacher whose words are recorded
in an authoritative work; or he may be appealed to as a character in
the Gospels, considered as stories largely fictional. The first and
last of these are to be considered under the current heading, the
second would make for an argument of the type discussed in the
previous section.
This can be further illustrated by considering the slogan ‘What
would Jesus do?’ taken from the title of an 1896 novel by Charles
Sheldon. The slogan is a nice example of erotetic reasoning, argu-
ing through questions (see Wiśniewski 2013). The implication is
that one should consider what Jesus would do and then follow His
example. What is interesting is that it doesn’t matter how one sees
Jesus for this implication to work as an argument. In every case,
one has to work out what Jesus would do—or say on the matter—
based upon what is recorded in the Gospels. Assuming that can be
done, the only difference is in how authoritative we find Jesus’
advice: if Jesus is God, that’s very authoritative; if Jesus is a char-
ismatic preacher who inspired a world religion, that’s also pretty
authoritative; and even if Jesus is only a character in a story, he’s a
character widely known for moral wisdom—just as Holmes is
known for brilliant detection—and so his opinion is worth consid-
ering.
Still, in any particular case where what Jesus would say or do is
cited as an authority, just as in the examples above, there are two
points to the argument—that it matters what Jesus would say and
that Jesus would say that: that E is an expert and that E asserts A.
596 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
These two premises reveal the clearest divide in the “fictional”
authorities variety. Those who appear in acknowledged works of
fiction, or texts of uncertain authorship, do have actual utterances
attributed to them. This means the second premise, that E asserts
A, can be assessed in the same way as it would be for confirmed
historical characters: either an assertion was made which makes
the view of this person clear and the source can be treated as ex-
tant, or the argument is being made on an assumption of what the
person would have said based on other things which that person
did say, or do, by force of analogy. As above, here we are con-
cerned with attributions of opinions made on behalf of the source,
rather than citations of their words.
As to whether the source can be considered an expert, or an au-
thority, that depends upon how that person is considered by the
audience in cases of legends and Gods, and on how the creator of
that character is considered in cases of obvious fiction: if we think
of Charles Dickens as an authority on the London in which he
lived, for which there is good evidence, then we may think of the
words of his characters as carrying the weight of that authority
when they are used to describe the reality of the city at that time.
Fictional characters, of course, do not always tell the truth even
within the world of their story, and certainly cannot be taken to be
at all times the mouthpieces for the views of the author.
The scheme could be adapted thus:
Source Premise: Source E would be an expert in subject domain S
containing proposition A.
Assertion Premise: E would assert that proposition A (in domain
S) is true (false).
Warrant Premise: If source E would be an expert in subject do-
main S containing proposition A, and E would assert that propo-
sition A (in domain S) is true (false), then A may plausibly be
taken to be true (false).
Conclusion: A may plausibly be taken to be true (false).
The CQs here relating to the first two premises are likely to be
difficult to answer unless the arguer is himself regarded as an
expert authority on the source. For example, if J.K. Rowling were
to claim that Harry Potter would make a certain assertion, then the
Non-existent authorities & arguments from analogy 597
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
assertion premise would look pretty secure; alternatively, if a
religious minister claims that a personage from a holy book would
assert a proposition, we also have reason to accept this view on the
basis of the minister’s being an accepted authority on the interpre-
tation of that book—whatever our view of that religion.
The degree to which fictional characters can ever be thought to
fulfil the source premise is open to question. It would seem that
such a personage could only be granted that status as a matter of
faith. This is obviously the case with gods and prophets, but equal-
ly so with characters from books—Sherlock Holmes never actual-
ly solved a case, so appealing to his methods as examples of good
practice is based only on the belief that the character was right
about detection, not on any record he had. Equally, one might
invoke the spirit of Robin Hood in defence of a theft from the rich,
but Robin Hood only has authority on matters of property rights if
one already agrees with what Robin Hood stands for—forced
redistribution of wealth. There is no independent backing to give
him standing in matters of morality more generally.
Appeals of this kind, then, are likely only to be considered
strong by those who are already committed to accepting the au-
thority of the character in question: Christians, by definition,
accept the authority of Jesus; Star Wars fans acknowledge that of
Yoda. Any more substantial evidence of their views is again likely
to be reliant on the force of an analogy to make it relevant in the
present case.
It is worth returning, however, to the above-mentioned ad hoc
inventions, which can take on a life of their own, so to speak, and
feature in very serious forms of argument. Philosophers and law-
yers have used various formulations to stand for a non-existent
reliable person, to whose opinion they can appeal.
In English law there is the long-standing tradition of the man on
the Clapham omnibus.5 This personage was described recently in a
United Kingdom Supreme Court judgement thus:
5 There is a large literature on this topic, see The Philosophy of the Reasonable
Man (1963) by J. R. Lucas and the more recent article by King (2017).
598 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
The Clapham omnibus has many passengers. The most venerable
is the reasonable man, who was born during the reign of Victoria
but remains in vigorous health. Amongst the other passengers are
the right-thinking member of society, familiar from the law of
defamation, the officious bystander, the reasonable parent, the
reasonable landlord, and the fair-minded and informed observer
[…] its most famous passenger, and the others I have mentioned,
are legal fictions. They belong to an intellectual tradition of defin-
ing a legal standard by reference to a hypothetical person, which
stretches back to the creation by Roman jurists of the figure of the
bonus paterfamilias (Healthcare at Home Ltd v The Common
Services Agency (Scotland), 2014 UKSC49, 1).
This statement makes it clear that arguments from what the man
on the Clapham omnibus would do are actually arguments from a
legal standard, and goes on to quote Lord Radcliffe, clarifying
that: “The spokesman of the fair and reasonable man, who repre-
sents after all no more than the anthropomorphic conception of
justice, is and must be the court itself” (Davis Contractors Ltd. v.
Fareham UDC, 1956 AC686, 728). This makes the circularity
apparent: the court invokes the court as arbiter of what is fair.
This happens not only in law: pragma-dialectics sets great store
by the “rational critic who judges reasonably” (van Eemeren and
Grootendorst 2004, p. 37),6 and Rawls, famously, stakes every-
thing on the rationality of “persons in the original position” (1972,
p. 142) whose great feature is their ignorance of themselves; even
Wittgenstein allows himself to refer to what “a reasonable man
will not doubt” (1969, sect. 19). In such cases, it is seldom stated
that a proposition is true or acceptable because a reasonable man
would think it so, but that is the implication. There is clearly a real
danger here of begging the question: although Rawls’s deliberators
are “deprived of information about their particular ends, they have
enough knowledge to rank the alternatives. […] They can make a
rational decision in the ordinary sense” (1972, p. 143), which is to
say that they have enough knowledge to reach the conclusions
Rawls thinks rational.
6 See Perelman on the distinction between the reasonable and the rational
(1979).
Non-existent authorities & arguments from analogy 599
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
Thus, in all these cases, a hypothetical person is created in or-
der to act as an authority, but actually represents by proxy the
conception of reasonableness favoured by the arguer. Indeed, the
Rawls example is a particularly striking one since his whole theory
of justice is supported by the argument that its principles are those
which would be chosen by a group of rational people.7 This is
perhaps the most influential argument from non-existent authority
in modern philosophy.
4. A general scheme for non-existent authorities
In this section, I attempt to bring together the characteristics which
unite the three main forms of arguing from non-existent authori-
ties, and to use them in the construction of an argument scheme.
The general characteristics I take to be the following:
1. A standpoint is assigned to a person not currently living.
2. This standpoint is neither found explicitly, nor clearly implied,
in the words of that person.
3. The assigned standpoint is based upon an interpretation of the
acknowledged characteristics of that person.
4. The standpoint is implied or explicitly stated to be relevant to
the present situation because of the authority of that person.
5. Since the person to whom the standpoint is assigned is consid-
ered an authority, that standpoint should be treated as a true state-
ment.
Points 4 and 5 apply equally to appeals to existing authorities,
which gives some justification for treating arguments from the
non-existent as a class of the same pattern of reasoning. However,
points 2 and 3 reveal a very different basis for the data claim:
where a conventional argument from authority relies explicitly on
what a source has said, arguments form non-existent authorities
7 It should, of course, be noted that Rawls devotes a great many pages to show-
ing why the rational person, free of bias, would behave as he describes.
600 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
rely instead on what the arguer believes that source would say.
This throws tremendous importance onto the authority of the
arguer to form that belief. Arguments from non-existent authorities
can, therefore, be seen as double appeals to authority: that the
person appealed to would be an authority, and that the person
appealing is an authority on what that source would say. It should
also be noted in relation to point 2 that our authority on the non-
existent authority may put a considerable amount of work into
showing how a particular standpoint is, in fact, clearly implied by
the known writings of the source taken together with other factors
connected with the environment of the time. This is not the place
for a thorough discussion of how clear such an implication might
need to be, but there is a species of argument where the standpoint
of the authority is constructed in this way, rather than assumed or
guessed at on some vague basis.
A scheme following Walton’s structure would look like this:
Source premise 1: Source E would be an expert in subject domain
S containing proposition A.
Source premise 2: Source D is an expert on what source E would
assert in subject domain S containing proposition A.
Assertion premise: D asserts that E would assert that proposition A
(in domain S) is true (false).
Warrant Premise: If D is an expert on what E would assert and E
would be an expert in subject domain S containing proposition
A, and D asserts that E would assert that proposition A (in do-
main S) is true (false), then A may plausibly be taken to be true
(false).
Conclusion: A may plausibly be taken to be true (false).
All of which is somewhat exhausting, but easy enough to follow, I
think, if we bear in mind that D will often, though not always, be
the person making the argument, rather than some supposedly
independent authority. This structure allows us to apply CQs in a
traditional way to evaluate the argument. The assertion premise is
simple to assess since it is the actual assertion of D which is at
issue, not a non-existent assertion of E. Further, as we have seen,
since that assertion is not based on a knowledge of what E said on
the topic, it is always based on an interpretation by analogy of
Non-existent authorities & arguments from analogy 601
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
what E would say, if asked. This step moves from whatever is
known about E to some new supposition about E’s views through
the claim that the current matter at hand is analogous to some
other matter on which E, or, in the case of future experts, someone
like E, did express a view. Therefore, while the structure of the
argument is that of an argument from authority, the force of its
inference is that of an argument from analogy. This could be rec-
ognised explicitly in the scheme by modifying the assertion prem-
ise:
Assertion premise: D asserts by analogy that E would assert that
proposition A (in domain S) is true (false).
The list of critical questions might then look like this:
CQ 1: Is proposition A in subject domain S?
CQ 2: What evidence suggests that E would be an expert on
subject domain S?
CQ 3: What evidence suggests that D is an expert on what E
would assert on proposition A?
CQ 4: What did D say to assert that E would say that A was
true (false)?
CQ 5: What characteristic/assertion of E did D cite as
evidence that E would say that A was true (false)?
CQ 6: Is the cited characteristic/assertion analogous to an
assertion about A?
5. Conclusion
All of these musings have some very serious implications for the
general argument from authority. To come back to the metaphys-
ics eschewed in an earlier section, there is a sense in which there is
no such thing as the present: every source which we may cite in an
argument is a source from the past or the future. In some rare cases
the authority may be present with us at the time of the argument,
602 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
but generally, even when our authority is alive and well, what we
actually have to deal with is a text recorded in the past, and often
the subject matter will be only analogically linked to the question
with which we are currently engaged. Opportunities to ask that
authority what he or she actually thinks now occur only seldom.
Even clearly expressed principles might be trumped by other
considerations if the authority knew all the facts of our case. In
practice, therefore, outside of situations such as court cases or
parliamentary committee hearings, there is often little difference
between a living source and a dead one.
We are, in actual practice, constantly appealing to authorities
with the help of a bridging argument from analogy, because they
are unlikely to have commented upon the exact same situation
which we are currently discussing: that is to say, there is very
often an assumption of relevance based on an analogy between the
circumstances in which the opinion was given and those currently
pertaining. This is recognised in Walton’s critical question con-
cerning the assertion, but it is not made explicit. It is rather as-
sumed that the statement made which asserts that A is true or not
refers directly to A, but it may be in many cases that while the
assertion was actually made and has been understood, it is of only
dubious relevance. The cases of non-existent authorities make this
point much clearer.
As for the appeal to non-existent authorities itself, perhaps the
most sensible course is to dismiss it as merely an underhand per-
suasive strategy masquerading as a respectable argument form. It
is interesting to note that one might claim that improper or “falla-
cious” use of otherwise reputable argument schemes is very much
how the business of persuasion is conducted. Douglas Walton
wrote that: “A fallacy is an argumentation technique that could be
used rightly in one context of dialogue, but is used wrongly in the
particular case in question” (1992, p. 267), suggesting that falla-
cies simply are inappropriate uses of good, defeasible schemes,
and this strategy, piggy-backing on genuine appeals to authority
appears to provide a good example.
Non-existent authorities & arguments from analogy 603
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
References
Abramsky, Sasha. 2020. History will judge republicans for protecting an
impeached president. Truthout. URL:
Allen, Peter. 2012. Salma Hayek made a knight in France. The Tele-
graph, Jan. 3, 2012. URL:
Anderson, Elizabeth. 2011. Democracy, public policy, and lay assess-
ments of scientific testimony. Episteme 8 (8): 144–164.
ArthurThistlewood. 2020. Comment. Premier League: 10 things to look
out for this weekend. The Guardian, Mar. 6, 2020. URL:
Botting, David. 2018. Two types of argument from position to know.
Informal logic 38(4): 502–530.
Brennan, Johnny. 2020. Can novices trust themselves to choose trust-
worthy experts? Reasons for (reserved) optimism. Social epistemolo-
gy 34(3): 227-240.
Brest, Paul. 1980. The misconceived quest for the original understand-
ing. Boston University law review 60: 204-238.
Collins, Harry. 2018. Are experts right or are they members of
expert groups?, Social epistemology 32(6): 351-357, DOI:
10.1080/02691728.2018.1546346
Collins, Harry, Evans, Robert. 2007. Rethinking expertise. Chicago:
University of Chicago Press.
Davis Contractors Ltd. v. Fareham UDC. 1956. UKHL 3 AC 686,
728.
Dillon, Andrew. 2016. Twister fate: George Best would turn in his
grave if he knew how the Northern Ireland players are relaxing. The
Sun, Jun. 3, 2016. URL:
van Eemeren, Frans H. and Grootendorst, Rob. 2004. A systematic
theory of argumentation. The pragma-Dialectical approach. Cam-
bridge: Cambridge University Press.
Gerber, Scott. 2014. Liberal originalism: The Declaration of
Independence and constitutional interpretation - symposium:
History and meaning of the Constitution. Cleveland state law
604 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
review 63(1): article 5.
Goldman, Alvin I. 2001. Experts: Which ones should you trust?
Philosophy and phenomenological research, 63(1): 85-110.
Goodwin, Jean. 1998. Forms of authority and the real ad verecundiam.
Argumentation,12(2): 267-280.
Goodwin, Jean. 2011. Accounting for the appeal to the authority of
experts. Argumentation 25(3): 285–296.
Harrison, Fred. 2016. Adam Smith is turning in his grave. Share the
Rents. URL:
Healthcare at Home Ltd v The Common Services Agency (Scotland).
2014. UKSC 49.
Hinton, Martin. 2015. Mizrahi and Seidel: Experts in confusion. Infor-
mal logic 35(4): 539-554.
Hinton, Martin. 2018a. On testimony. In Argumentation and Inference:
Proceedings of the 2nd European conference on argumentation, Fri-
bourg 2017, Eds. Oswald, S. & Maillat, D. 203-219. London:
College Publications.
Hinton, Martin. 2018b. Overcoming disagreement through ordering:
Building an epistemic hierarchy. Studies in logic, grammar and rhet-
oric 55(1) 77-91.
Hinton, Martin. 2019. Why the fence is the seat of reason when experts
disagree. Social epistemology 33(2) 160-171.
Jensen, Karsten. K. 2015. Future generations in democracy: Representa-
tion or consideration? Jurisprudence 6(3): 535-548.
Karnein, Anja. 2016. Can we represent future generations? In: Institu-
tions for future generations, eds. I. González-Ricoy and A. Gosseries:
83-97. Oxford University Press.
King, Matt. 2017. Against personifying the reasonable person. Criminal
law and philosophy 11(4): 725-732.
Lawrence, Peter. M. 2013. Justice for future generations: Climate
change and international law. Tilburg: Tilburg University.
Liao, Yanliin. 2020. The legitimacy crisis of arguments from expert
opinion: Can’t we trust experts? Argumentation 35(2): 265-286.
Lucas, J.R. 1963. The philosophy of the reasonable man. The philosoph-
ical quarterly (1950-) 13(51): 97-106.
Parfit, Derek. 1984. Reasons and persons. Oxford: Oxford University
Press.
Perelman, Chaim. 1979. The rational and the reasonable. In: The new
rhetoric and the humanities. Synthese library (Studies in epistemolo-
gy, logic, methodology, and philosophy of science), vol 140. Dor-
drecht: Springer.
Quast, Christian. 2018. Expertise: A practical explication. Topoi 37(1):
Non-existent authorities & arguments from analogy 605
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
11-27.
Rawls, John. 1972. A theory of justice. Oxford: Oxford University
Press.
Richards, Xander. 2020. Was David Hume racist? Here's the Scottish
philosopher's racist comment in full. The National, 13 Sept. 2020.
URL:.
Riley, Charlotte Lydia. 2020. On behalf of all ‘future historians’, leave
us out of your Brexit rants. The Guardian, Feb. 25, 2020. URL:
.
Sanklecha, Pranay. 2017. Our obligations to future generations: The
limits of intergenerational justice and the necessity of the ethics of
metaphysics. Canadian journal of philosophy 47(2-3): 229-245.
Scott v. Sandford. 1857. 60 U.S. (19 How.) 393.
Seidel, Markus. 2014. Throwing the baby out with the water: From
reasonably scrutinizing authorities to rampant scepticism about ex-
pertise. Informal logic,32(2): 198-218.
Shanteau, James, David Weiss, Rickey Thomas and Julia Pounds. 2002.
Performance-based assessment of expertise: How to decide if some-
one is an expert or not. European journal of operational research
136(2): 253-263.
Solum, Lawrence. 2011. What is originalism? The evolution of contem-
porary originalist theory. Social science research network. URL:
.
von Spakowsky, Hans. 2020. How history will judge the Trump im-
peachment. The Daily Signal, Feb 7, 2020.
.
Wagemans, Jean. 2011. The assessment of argumentation from expert
opinion. Argumentation 25(3): 329-339.
Walton, Douglas N. 1992. Plausible argument in everyday conversation.
NY: State University of New York.
Walton, Douglas N. 1997. Appeal to expert opinion. PA: Penn State
Press.
Walton, Douglas N. 2006. Examination dialogue: An argumentation
framework for critically questioning an expert opinion. Journal of
pragmatics 38(5): 745-777.
Walton, Douglas N., Chris Reed and Fabrizio Macagno, 2008. Argumen-
tation schemes. Cambridge: Cambridge University Press.
Watson, Jamie C. 2019. What experts could not be. Social epistemology
33(1): 74-87, DOI: 10.1080/02691728.2018.1551437
606 Hinton
© Martin Hinton. Informal Logic, Vol. 41, No. 4 (2021), pp. 579–606.
Wiśniewski, Andrzej. 2013. Questions, inferences, and scenarios. Lon-
don: College Publications.
Wittgenstein, Ludwig. 1969. On Certainty. eds. G. E. M. Anscombe,
Denis Paul and G. H. von Wright. Oxford: Basil Blackwell.