TPTP Problem File: GEO247+3.p
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%------------------------------------------------------------------------------
% File : GEO247+3 : TPTP v9.0.0. Released v4.0.0.
% Domain : Geometry (Constructive)
% Problem : A point in each region formed by intersecting lines
% Version : [vPl98] axioms.
% English :
% Refs : [vPl98] von Plato (1998), A Constructive Theory of Ordered Aff
% : [ROK06] Raths et al. (2006), The ILTP Problem Library for Intu
% : [Rat07] Raths (2007), Email to Geoff Sutcliffe
% Source : [Rat07]
% Names : Theorem 5.8 [vPl98]
% Status : Theorem
% Rating : 0.07 v9.0.0, 0.00 v6.1.0, 0.04 v6.0.0, 0.25 v5.5.0, 0.08 v5.4.0, 0.09 v5.3.0, 0.17 v5.2.0, 0.14 v5.0.0, 0.05 v4.1.0, 0.06 v4.0.1, 0.05 v4.0.0
% Syntax : Number of formulae : 37 ( 6 unt; 0 def)
% Number of atoms : 118 ( 0 equ)
% Maximal formula atoms : 10 ( 3 avg)
% Number of connectives : 93 ( 12 ~; 22 |; 31 &)
% ( 10 <=>; 18 =>; 0 <=; 0 <~>)
% Maximal formula depth : 15 ( 6 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 18 ( 18 usr; 0 prp; 1-4 aty)
% Number of functors : 4 ( 4 usr; 0 con; 1-2 aty)
% Number of variables : 87 ( 87 !; 0 ?)
% SPC : FOF_THM_RFO_NEQ
% Comments :
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include('Axioms/GEO009+0.ax').
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fof(con,conjecture,
! [A,B,C,D,L,M] :
( ( left_apart_point(A,L)
& left_apart_point(A,M)
& right_apart_point(B,L)
& right_apart_point(B,M)
& left_apart_point(C,L)
& right_apart_point(C,M)
& right_apart_point(D,L)
& left_apart_point(D,M) )
=> convergent_lines(L,M) ) ).
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