Author/Authors :
Niovi Kehayopulu، نويسنده , , Michael Tsingelis، نويسنده ,
Keywords :
Ordered groupoid , Fuzzy subset , Regular ordered semigroup , Left(right) ideal , Fuzzy left (right) ideal , Quasi-ideal of an ordered groupoid , Fuzzy quasi-ideal of anordered groupoid , Idempotent fuzzy set (subset) , Ordered semigroup