TPTP Problem File: SYN933+1.p
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% File : SYN933+1 : TPTP v9.0.0. Released v3.1.0.
% Domain : Syntactic
% Problem : From Smullyan
% Version : Especial.
% English :
% Refs : [Smu68] Smullyan (1968), First-Order Logic
% [Shu04] Shults (2004), Email to G. Sutcliffe
% Source : [Shu04]
% Names :
% Status : Theorem
% Rating : 0.00 v4.0.1, 0.05 v3.7.0, 0.00 v3.2.0, 0.11 v3.1.0
% Syntax : Number of formulae : 1 ( 0 unt; 0 def)
% Number of atoms : 2 ( 0 equ)
% Maximal formula atoms : 2 ( 2 avg)
% Number of connectives : 1 ( 0 ~; 0 |; 0 &)
% ( 1 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 3 avg)
% Maximal term depth : 0 ( 0 avg)
% Number of predicates : 1 ( 1 usr; 1 prp; 0-0 aty)
% Number of functors : 0 ( 0 usr; 0 con; --- aty)
% Number of variables : 1 ( 1 !; 0 ?)
% SPC : FOF_THM_PRP
% Comments :
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fof(prove_this,conjecture,
( ! [X] : c
<=> c ) ).
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