TPTP Problem File: NUM922_1.p
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% File : NUM922_1 : TPTP v8.2.0. Released v5.0.0.
% Domain : Number Theory
% Problem : Universal predicate
% Version : Especial.
% English :
% Refs : [PW06] Prevosto & Waldmann (2006), SPASS+T
% : [Wal10] Waldmann (2010), Email to Geoff Sutcliffe
% Source : [Wal10]
% Names : (26) [PW06]
% Status : Theorem
% Rating : 1.00 v5.0.0
% Syntax : Number of formulae : 2 ( 0 unt; 1 typ; 0 def)
% Number of atoms : 6 ( 0 equ)
% Maximal formula atoms : 6 ( 3 avg)
% Number of connectives : 5 ( 0 ~; 0 |; 2 &)
% ( 0 <=>; 3 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 6 avg)
% Maximal term depth : 2 ( 1 avg)
% Number arithmetic : 8 ( 0 atm; 2 fun; 3 num; 3 var)
% Number of types : 2 ( 0 usr; 1 ari)
% Number of type conns : 1 ( 1 >; 0 *; 0 +; 0 <<)
% Number of predicates : 1 ( 1 usr; 0 prp; 1-1 aty)
% Number of functors : 4 ( 0 usr; 2 con; 0-2 aty)
% Number of variables : 3 ( 3 !; 0 ?; 3 :)
% SPC : TF0_THM_NEQ_ARI
% Comments :
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tff(p_type,type,
p: $int > $o ).
tff(co1,conjecture,
( ( p(0)
& ! [U: $int] :
( p(U)
=> p($sum(U,1)) )
& ! [V: $int] :
( p(V)
=> p($difference(V,1)) ) )
=> ! [W: $int] : p(W) ) ).
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