TPTP Problem File: SYN378+1.p

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% File     : SYN378+1 : TPTP v8.1.0. Released v2.0.0.
% Domain   : Syntactic
% Problem  : Peter Andrews Problem X2130
% Version  : Especial.
% English  :

% Refs     : [And86] Andrews (1986), An Introduction to Mathematical Logic
%          : [And94] Andrews (1994), Email to G. Sutcliffe
% Source   : [And94]
% Names    : X2130 [And86]

% Status   : Theorem
% Rating   : 0.00 v5.3.0, 0.09 v5.2.0, 0.00 v2.3.0, 0.33 v2.2.1, 0.00 v2.1.0
% Syntax   : Number of formulae    :    1 (   0 unt;   0 def)
%            Number of atoms       :    4 (   0 equ)
%            Maximal formula atoms :    4 (   4 avg)
%            Number of connectives :    4 (   1   ~;   1   |;   0   &)
%                                         (   0 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    5 (   5 avg)
%            Maximal term depth    :    1 (   1 avg)
%            Number of predicates  :    2 (   2 usr;   0 prp; 1-1 aty)
%            Number of functors    :    0 (   0 usr;   0 con; --- aty)
%            Number of variables   :    3 (   1   !;   2   ?)
% SPC      : FOF_THM_EPR_NEQ

% Comments :
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fof(x2130,conjecture,
    ( ! [X] : big_p(X)
   => ( ~ ? [Y] : big_q(Y)
      | ? [Z] :
          ( big_p(Z)
         => big_q(Z) ) ) ) ).

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