TPTP Problem File: GEO136+1.p
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%--------------------------------------------------------------------------
% File : GEO136+1 : TPTP v8.2.0. Released v2.4.0.
% Domain : Geometry (Oriented curves)
% Problem : Underlying curve and one pair of points sufficient for ordering
% Version : [EHK99] axioms.
% English : The underlying curve and one pair of points are sufficient for
% the ordering of the points on the oriented curve.
% Refs : [KE99] Kulik & Eschenbach (1999), A Geometry of Oriented Curv
% : [EHK99] Eschenbach et al. (1999), Representing Simple Trajecto
% Source : [KE99]
% Names : Theorem 4.19 [KE99]
% Status : Unknown
% Rating : 1.00 v2.4.0
% Syntax : Number of formulae : 28 ( 2 unt; 0 def)
% Number of atoms : 126 ( 20 equ)
% Maximal formula atoms : 14 ( 4 avg)
% Number of connectives : 106 ( 8 ~; 18 |; 41 &)
% ( 21 <=>; 18 =>; 0 <=; 0 <~>)
% Maximal formula depth : 12 ( 7 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 15 ( 14 usr; 0 prp; 1-4 aty)
% Number of functors : 2 ( 2 usr; 0 con; 1-2 aty)
% Number of variables : 99 ( 85 !; 14 ?)
% SPC : FOF_UNK_RFO_SEQ
% Comments :
%--------------------------------------------------------------------------
%----Include simple curve axioms
include('Axioms/GEO004+0.ax').
%----Include axioms of betweenness for simple curves
include('Axioms/GEO004+1.ax').
%----Include oriented curve axioms
include('Axioms/GEO004+2.ax').
%--------------------------------------------------------------------------
fof(theorem_4_19,conjecture,
! [O,P,Q] :
( ordered_by(O,P,Q)
=> ! [R,S] :
( ( ordered_by(O,R,S)
<=> ( between(O,R,P,Q)
& ( between(O,R,S,Q)
| between(O,R,Q,S)
| Q = S ) ) )
| ( between(O,P,R,S)
& ( between(O,P,R,Q)
| between(O,P,Q,R)
| Q = R ) )
| ( P = R
& ( between(O,P,S,Q)
| between(O,P,Q,S)
| Q = S ) ) ) ) ).
%--------------------------------------------------------------------------