期刊名称：International Journal of Mathematics and Mathematical Sciences
印刷版ISSN：0161-1712
电子版ISSN：1687-0425
出版年度：2010
卷号：2010
DOI：10.1155/2010/819463
出版社：Hindawi Publishing Corporation
摘要：Based on the theory of falling shadows and fuzzy sets, the notion of a falling
fuzzy implicative ideal of a BCK-algebra is introduced. Relations among
falling fuzzy ideals, falling fuzzy implicative ideals, falling fuzzy positive implicative
ideals, and falling fuzzy commutative ideals are given. Relations
between fuzzy implicative ideals and falling fuzzy implicative ideals are provided.
