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Extended filters in BL-algebras

نویسندگان :

Fereshteh Forouzesh¹

1- مجتمع آموزش عالی بم

کلمات کلیدی :

BL-algebra،Stable filter،Extended filter،Heyting algebra

چکیده :

In this paper, we introduce extended of a filter associated to a subset of a BL-algebra and study some properties of them. Then we investigate some characterizations and by some examples we show that these notions are different. Finally, the class of all stable filter relative to is also a complete Heyting algebra for a BL-algebra .