TPTP Problem File: GEO226+3.p
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%------------------------------------------------------------------------------
% File : GEO226+3 : TPTP v9.0.0. Released v4.0.0.
% Domain : Geometry (Constructive)
% Problem : Existence of point incident to line
% Version : [vPl95] axioms.
% English : Assume orthogonal geometry. Given a point and a line, to find
% a point incident with the line.
% Refs : [vPl95] von Plato (1995), The Axioms of Constructive Geometry
% : [ROK06] Raths et al. (2006), The ILTP Problem Library for Intu
% : [Rat07] Raths (2007), Email to Geoff Sutcliffe
% Source : [Rat07]
% Names :
% Status : Theorem
% Rating : 0.07 v9.0.0, 0.00 v6.3.0, 0.08 v6.2.0, 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, 0.16 v4.0.0
% Syntax : Number of formulae : 36 ( 7 unt; 0 def)
% Number of atoms : 99 ( 0 equ)
% Maximal formula atoms : 6 ( 2 avg)
% Number of connectives : 91 ( 28 ~; 19 |; 16 &)
% ( 5 <=>; 23 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 5 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 12 ( 12 usr; 0 prp; 1-2 aty)
% Number of functors : 4 ( 4 usr; 0 con; 2-2 aty)
% Number of variables : 84 ( 83 !; 1 ?)
% SPC : FOF_THM_RFO_NEQ
% Comments :
%------------------------------------------------------------------------------
include('Axioms/GEO006+0.ax').
include('Axioms/GEO006+1.ax').
include('Axioms/GEO006+2.ax').
include('Axioms/GEO006+3.ax').
include('Axioms/GEO006+4.ax').
include('Axioms/GEO006+5.ax').
include('Axioms/GEO006+6.ax').
%------------------------------------------------------------------------------
fof(con,conjecture,
! [L,M] :
( ( line(L)
& line(M)
& convergent_lines(L,M) )
=> ? [X] :
( point(X)
=> ( incident_point_and_line(X,L)
& incident_point_and_line(X,M) ) ) ) ).
%------------------------------------------------------------------------------