We give two generalizations of Tarski’s fixpoint theorem in the setting of residuated lattices and use them to establish van Emdem-Kowalski’s least fixpoint semantics for residuated lattice-valued logic programs.
机构:
Sichuan TOP Vocat Coll Informat Technol, Chengdu 611743, Sichuan, Peoples R ChinaSichuan TOP Vocat Coll Informat Technol, Chengdu 611743, Sichuan, Peoples R China