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SAT in monadic Gödel logics: a borderline between decidability and undecidability. (English) Zbl 1246.03046
Ono, Hiroakira (ed.) et al., Logic, language, information and computation. 16th international workshop, WoLLIC 2009, Tokyo, Japan, June 21–24, 2009. Proceedings. Berlin: Springer (ISBN 978-3-642-02260-9/pbk). Lecture Notes in Computer Science 5514. Lecture Notes in Artificial Intelligence, 113-123 (2009).
Summary: We investigate satisfiability in the monadic fragment of first-order Gödel logics. These are a family of finite- and infinite-valued logics where the sets of truth values $$V$$ are closed subsets of $$[0, 1]$$ containing 0 and 1. We identify conditions on the topological type of $$V$$ that determine the decidability or undecidability of their satisfiability problem.
For the entire collection see [Zbl 1165.03002].

##### MSC:
 03B52 Fuzzy logic; logic of vagueness 03B25 Decidability of theories and sets of sentences
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##### References:
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