Implementation of an extended possibilistic logic in an annotated logic theorem prover

We present a theorem prover for possibilistic logic extended with fuzzy constants and fuzzy quantifiers (PLFC), using system KOMET, a general theorem prover system based on generalized annotated logic (GAL). In a previous work (P. Kullman and S. Sandri, 1999), we verified the formal transformation of PLFC with Horn clauses into GAL. The authors discuss some implementation issues and present some examples.