Relations in Fuzzy Class Theory: Initial steps

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Libor Běhounek
Ulrich Bodenhofer
Petr Cintula
Title: Relations in Fuzzy Class Theory: Initial steps
Journal: Fuzzy Sets and Systems
Volume 159
Number 14
Pages: 1729-1772
Year: 2008
Download from the publisher


  • The first formula in the proof of (I21) in Th.4.6 should end with Rxz rather than Ryz.

A comment on (I52)

The clumsy proof of (I52) in Cor.4.11 in the published version of the paper resulted from a trivial mistake discovered only when the final version was already submitted. The statement has in fact a trivial proof that uses just the monotony of the opening and closure operators and of min-intersection and max-union with respect to inclusion. -- LBehounek 16:16, 17 November 2008 (CET)