id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejpam-3591	Kehayopulu, Niovi	On the Paper "On hyperideals of ordered semihypergroups" by ZeGu in Ital. J. Pure Appl. Math.	2019	8	.pdf	application/pdf	3455	214	78	Except of the fact that this is not enough to pass from ordered semigroup to ordered hypersemigroup (symbols like S ◦ b ◦S ◦S ◦ a ◦S have no sense) and that there is no reference to ordered semigroup on which it is based, this theorem is an immediate consequence of Theorem 23 in [10] and it is not new (see also the equivalence (1)⇔ (2) in Corollary 24 in [10] and the remark after that). There are also two results obtained from ordered semigroups just putting a “◦” instead of “·” (that isn’t a correct way to work), without reference to ordered semigroups on which the results on ordered hypersemigroups are based.	cache/ejpam-3591.pdf	txt/ejpam-3591.txt