Proof Confluent Tableau Calculi
نویسندگان
چکیده
A tableau calculus is proof confluent if every partial tableau proof for an unsatisfiable formula can be extended to a closed tableau. A rule application may be redundant but it can never prevent the construction of a proof; there are no “dead ends” in the proof search. Proof confluence is a prerequisite of (a) backtrackingfree proof search and (b) the generation of counter examples to non-theorems. In this tutorial we discuss the rôle and perspectives of proof confluent calculi in tableau-based theorem proving. For the sake of simplicity the discussion focuses on clause tableaux.
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تاریخ انتشار 1999