Equational Formulas with Membership Constraints

Autor: Hubert Comon, C. Delor
Jazyk: angličtina
Předmět:
Zdroj: Information and Computation. (2):167-216
ISSN: 0890-5401
DOI: 10.1006/inco.1994.1056
Popis: We propose a set of transformation rules for first order formulae whose atoms are either equations between terms or "membership constraints" t∈ζ. ζ can be interpreted as a regular tree language (ζ is called a sort in the algebraic specification community) or as a tree language in any class of languages which satisfies some adequate closure and decidability properties. This set of rules is proved to be correct, terminating, and complete. This provides a quantifier elimination procedure: for every regular tree language L, the first order theory of some structure defining L is decidable. This extends the results of several previously published results. We also show how to apply our results to automatic inductive proofs in equational theories.
Databáze: OpenAIRE