A New Penta-valued Logic Based Knowledge Representation

In this paper a knowledge representation model are proposed, FP5, which combine the ideas from fuzzy sets and penta-valued logic. FP5 represents imprecise properties whose accomplished degree is undefined, contradictory or indeterminate for some objects. Basic operations of conjunction, disjunction and negation are introduced. Relations to other representation models like fuzzy sets, intuitionistic, paraconsistent and bipolar fuzzy sets are discussed.

💡 Research Summary

The paper introduces FP5, a novel knowledge‑representation framework that merges fuzzy set theory with five‑valued logic. Traditional fuzzy sets assign a single membership degree μ∈