TPTP Problem File: SYN942+1.p
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% File : SYN942+1 : TPTP v9.0.0. Released v3.1.0.
% Domain : Syntactic
% Problem : Syntactic from Shults
% Version : Especial.
% English :
% Refs : [Shu04] Shults (2004), Email to G. Sutcliffe
% Source : [Shu04]
% Names :
% Status : Theorem
% Rating : 0.00 v5.3.0, 0.09 v5.2.0, 0.00 v4.1.0, 0.06 v4.0.1, 0.05 v3.7.0, 0.33 v3.5.0, 0.12 v3.4.0, 0.08 v3.3.0, 0.00 v3.2.0, 0.11 v3.1.0
% Syntax : Number of formulae : 1 ( 0 unt; 0 def)
% Number of atoms : 7 ( 0 equ)
% Maximal formula atoms : 7 ( 7 avg)
% Number of connectives : 7 ( 1 ~; 1 |; 2 &)
% ( 0 <=>; 3 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 6 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 3 ( 3 usr; 0 prp; 1-1 aty)
% Number of functors : 0 ( 0 usr; 0 con; --- aty)
% Number of variables : 3 ( 2 !; 1 ?)
% SPC : FOF_THM_EPR_NEQ
% Comments :
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fof(prove_this,conjecture,
( ( ! [X] :
( a(X)
=> ( b(X)
| c(X) ) )
& ~ ! [X] :
( a(X)
=> b(X) ) )
=> ? [X] :
( a(X)
& c(X) ) ) ).
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