TSTP Solution File: LCL027-1 by Faust---1.0
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%------------------------------------------------------------------------------
% File : Faust---1.0
% Problem : LCL027-1 : TPTP v3.4.2. Released v1.0.0.
% Transfm : none
% Format : tptp
% Command : faust %s
% Computer : art03.cs.miami.edu
% Model : i686 i686
% CPU : Intel(R) Pentium(R) 4 CPU 2.80GHz @ 2793MHz
% Memory : 1003MB
% OS : Linux 2.6.17-1.2142_FC4
% CPULimit : 600s
% DateTime : Wed May 6 13:40:11 EDT 2009
% Result : Unsatisfiable 0.8s
% Output : Refutation 0.8s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 5
% Syntax : Number of formulae : 17 ( 12 unt; 0 def)
% Number of atoms : 24 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 16 ( 9 ~; 7 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 2 avg)
% Maximal term depth : 5 ( 2 avg)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-1 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 29 ( 5 sgn 8 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Faust---1.0 format not known, defaulting to TPTP
fof(prove_c0_4,plain,
~ is_a_theorem(implies(falsehood,a)),
file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),
[] ).
cnf(153405752,plain,
~ is_a_theorem(implies(falsehood,a)),
inference(rewrite,[status(thm)],[prove_c0_4]),
[] ).
fof(condensed_detachment,plain,
! [A,B] :
( ~ is_a_theorem(implies(A,B))
| ~ is_a_theorem(A)
| is_a_theorem(B) ),
file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),
[] ).
cnf(153385232,plain,
( ~ is_a_theorem(implies(A,B))
| ~ is_a_theorem(A)
| is_a_theorem(B) ),
inference(rewrite,[status(thm)],[condensed_detachment]),
[] ).
fof(c0_2,plain,
! [A,B] : is_a_theorem(implies(A,implies(B,A))),
file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),
[] ).
cnf(153389984,plain,
is_a_theorem(implies(A,implies(B,A))),
inference(rewrite,[status(thm)],[c0_2]),
[] ).
cnf(161421984,plain,
( ~ is_a_theorem(implies(implies(B,implies(C,B)),A))
| is_a_theorem(A) ),
inference(resolution,[status(thm)],[153385232,153389984]),
[] ).
fof(c0_6,plain,
! [A,B,C] : is_a_theorem(implies(implies(A,implies(B,C)),implies(implies(A,B),implies(A,C)))),
file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),
[] ).
cnf(153397944,plain,
is_a_theorem(implies(implies(A,implies(B,C)),implies(implies(A,B),implies(A,C)))),
inference(rewrite,[status(thm)],[c0_6]),
[] ).
cnf(161300256,plain,
( ~ is_a_theorem(implies(A,implies(B,C)))
| is_a_theorem(implies(implies(A,B),implies(A,C))) ),
inference(resolution,[status(thm)],[153385232,153397944]),
[] ).
cnf(161399448,plain,
( ~ is_a_theorem(A)
| is_a_theorem(implies(B,A)) ),
inference(resolution,[status(thm)],[153385232,153389984]),
[] ).
fof(c0_5,plain,
! [A] : is_a_theorem(implies(implies(implies(A,falsehood),falsehood),A)),
file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),
[] ).
cnf(153394024,plain,
is_a_theorem(implies(implies(implies(A,falsehood),falsehood),A)),
inference(rewrite,[status(thm)],[c0_5]),
[] ).
cnf(161532888,plain,
is_a_theorem(implies(A,implies(implies(implies(B,falsehood),falsehood),B))),
inference(resolution,[status(thm)],[161399448,153394024]),
[] ).
cnf(169808168,plain,
is_a_theorem(implies(implies(A,implies(implies(B,falsehood),falsehood)),implies(A,B))),
inference(resolution,[status(thm)],[161300256,161532888]),
[] ).
cnf(179749064,plain,
is_a_theorem(implies(falsehood,A)),
inference(resolution,[status(thm)],[161421984,169808168]),
[] ).
cnf(contradiction,plain,
$false,
inference(resolution,[status(thm)],[153405752,179749064]),
[] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% Proof found in: 0 seconds
% START OF PROOF SEQUENCE
% fof(prove_c0_4,plain,(~is_a_theorem(implies(falsehood,a))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),[]).
%
% cnf(153405752,plain,(~is_a_theorem(implies(falsehood,a))),inference(rewrite,[status(thm)],[prove_c0_4]),[]).
%
% fof(condensed_detachment,plain,(~is_a_theorem(implies(A,B))|~is_a_theorem(A)|is_a_theorem(B)),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),[]).
%
% cnf(153385232,plain,(~is_a_theorem(implies(A,B))|~is_a_theorem(A)|is_a_theorem(B)),inference(rewrite,[status(thm)],[condensed_detachment]),[]).
%
% fof(c0_2,plain,(is_a_theorem(implies(A,implies(B,A)))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),[]).
%
% cnf(153389984,plain,(is_a_theorem(implies(A,implies(B,A)))),inference(rewrite,[status(thm)],[c0_2]),[]).
%
% cnf(161421984,plain,(~is_a_theorem(implies(implies(B,implies(C,B)),A))|is_a_theorem(A)),inference(resolution,[status(thm)],[153385232,153389984]),[]).
%
% fof(c0_6,plain,(is_a_theorem(implies(implies(A,implies(B,C)),implies(implies(A,B),implies(A,C))))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),[]).
%
% cnf(153397944,plain,(is_a_theorem(implies(implies(A,implies(B,C)),implies(implies(A,B),implies(A,C))))),inference(rewrite,[status(thm)],[c0_6]),[]).
%
% cnf(161300256,plain,(~is_a_theorem(implies(A,implies(B,C)))|is_a_theorem(implies(implies(A,B),implies(A,C)))),inference(resolution,[status(thm)],[153385232,153397944]),[]).
%
% cnf(161399448,plain,(~is_a_theorem(A)|is_a_theorem(implies(B,A))),inference(resolution,[status(thm)],[153385232,153389984]),[]).
%
% fof(c0_5,plain,(is_a_theorem(implies(implies(implies(A,falsehood),falsehood),A))),file('/home/graph/tptp/TSTP/PreparedTPTP/tptp---none/LCL/LCL027-1.tptp',unknown),[]).
%
% cnf(153394024,plain,(is_a_theorem(implies(implies(implies(A,falsehood),falsehood),A))),inference(rewrite,[status(thm)],[c0_5]),[]).
%
% cnf(161532888,plain,(is_a_theorem(implies(A,implies(implies(implies(B,falsehood),falsehood),B)))),inference(resolution,[status(thm)],[161399448,153394024]),[]).
%
% cnf(169808168,plain,(is_a_theorem(implies(implies(A,implies(implies(B,falsehood),falsehood)),implies(A,B)))),inference(resolution,[status(thm)],[161300256,161532888]),[]).
%
% cnf(179749064,plain,(is_a_theorem(implies(falsehood,A))),inference(resolution,[status(thm)],[161421984,169808168]),[]).
%
% cnf(contradiction,plain,$false,inference(resolution,[status(thm)],[153405752,179749064]),[]).
%
% END OF PROOF SEQUENCE
%
%------------------------------------------------------------------------------