Spectra/snark-20120808r02/examples/LCL114-1+rm_eq_rstfp.kif

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2017-01-14 22:08:51 -05:00
;--------------------------------------------------------------------------
; File : LCL114-1 : TPTP v2.2.0. Released v1.0.0.
; Domain : Logic Calculi (Many valued sentential)
; Problem : MV-36 depnds on the Merideth system
; Version : [McC92] axioms.
; English : An axiomatisation of the many valued sentential calculus
; is {MV-1,MV-2,MV-3,MV-5} by Meredith. Show that 36 depends
; on the Meredith system.
; Refs : [Ove90] Overbeek (1990), ATP competition announced at CADE-10
; : [MW92] McCune & Wos (1992), Experiments in Automated Deductio
; : [McC92] McCune (1992), Email to G. Sutcliffe
; : [Ove93] Overbeek (1993), The CADE-11 Competitions: A Personal
; : [LM93] Lusk & McCune (1993), Uniform Strategies: The CADE-11
; Source : [McC92]
; Names : CADE-11 Competition 7 [Ove90]
; : MV-60 [MW92]
; : THEOREM 7 [LM93]
; Status : unsatisfiable
; Rating : 0.89 v2.1.0, 0.88 v2.0.0
; Syntax : Number of clauses : 6 ( 0 non-Horn; 5 unit; 2 RR)
; Number of literals : 8 ( 0 equality)
; Maximal clause size : 3 ( 1 average)
; Number of predicates : 1 ( 0 propositional; 1-1 arity)
; Number of functors : 4 ( 2 constant; 0-2 arity)
; Number of variables : 11 ( 1 singleton)
; Maximal term depth : 4 ( 2 average)
; Comments :
; : tptp2X -f kif -t rm_equality:rstfp LCL114-1.p
;--------------------------------------------------------------------------
; condensed_detachment, axiom.
(or (not (is_a_theorem (implies ?A ?B)))
(not (is_a_theorem ?A))
(is_a_theorem ?B))
; mv_1, axiom.
(or (is_a_theorem (implies ?A (implies ?B ?A))))
; mv_2, axiom.
(or (is_a_theorem (implies (implies ?A ?B) (implies (implies ?B ?C) (implies ?A ?C)))))
; mv_3, axiom.
(or (is_a_theorem (implies (implies (implies ?A ?B) ?B) (implies (implies ?B ?A) ?A))))
; mv_5, axiom.
(or (is_a_theorem (implies (implies (not ?A) (not ?B)) (implies ?B ?A))))
; prove_mv_36, conjecture.
(or (not (is_a_theorem (implies (implies a b) (implies (not b) (not a))))))
;--------------------------------------------------------------------------