University of Mohaghegh Ardabili Journal of Hyperstructures 2251-8436 5 2 2016 12 01 On fuzzy prime and fuzzy semiprime ideals of {hypergroupoids 108 114 2672 10.22098/jhs.2016.2672 EN Niovi Kehayopulu Department of Mathematics, University of Athens, 15784 Panepistimiopolis, Athens, Greece Journal Article 2023 12 16 We deal with an hypergroupoid endowed with a rela- tion denoted by \", we call it {hypergroupoid. We prove that a nonempty subset A of a {hypergroupoid H is a prime (resp. semiprime) ideal of H if and only if the characteristic function fA is a fuzzy prime (resp. fuzzy semiprime) ideal of H. https://jhs.uma.ac.ir/article_2672_f50f1c74f3d296b5c1462241ffa2097b.pdf