TPTP Problem File: SYN068+1.p
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% File : SYN068+1 : TPTP v9.0.0. Released v2.0.0.
% Domain : Syntactic
% Problem : Pelletier Problem 44
% Version : Especial.
% English :
% Refs : [KM64] Kalish & Montegue (1964), Logic: Techniques of Formal
% : [Pel86] Pelletier (1986), Seventy-five Problems for Testing Au
% : [Hah94] Haehnle (1994), Email to G. Sutcliffe
% Source : [Hah94]
% Names : Pelletier 44 [Pel86]
% Status : Theorem
% Rating : 0.00 v5.3.0, 0.09 v5.2.0, 0.00 v3.2.0, 0.22 v3.1.0, 0.00 v2.5.0, 0.33 v2.4.0, 0.33 v2.2.1, 0.00 v2.1.0
% Syntax : Number of formulae : 3 ( 0 unt; 0 def)
% Number of atoms : 10 ( 0 equ)
% Maximal formula atoms : 5 ( 3 avg)
% Number of connectives : 9 ( 2 ~; 0 |; 5 &)
% ( 0 <=>; 2 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 5 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 4 ( 4 usr; 0 prp; 1-2 aty)
% Number of functors : 0 ( 0 usr; 0 con; --- aty)
% Number of variables : 6 ( 2 !; 4 ?)
% SPC : FOF_THM_RFO_NEQ
% Comments :
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fof(pel44_1,axiom,
! [X] :
( big_f(X)
=> ( ? [Y] :
( big_g(Y)
& big_h(X,Y) )
& ? [Y1] :
( big_g(Y1)
& ~ big_h(X,Y1) ) ) ) ).
fof(pel44_2,axiom,
? [X] :
( big_j(X)
& ! [Y] :
( big_g(Y)
=> big_h(X,Y) ) ) ).
fof(pel44,conjecture,
? [X] :
( big_j(X)
& ~ big_f(X) ) ).
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