TSTP Solution File: GEO257+3 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : GEO257+3 : TPTP v8.1.0. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n015.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Sat Jul 16 05:55:36 EDT 2022

% Result   : Theorem 0.81s 1.09s
% Output   : Refutation 0.81s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.14  % Problem  : GEO257+3 : TPTP v8.1.0. Released v4.0.0.
% 0.08/0.14  % Command  : tptp2X_and_run_prover9 %d %s
% 0.15/0.36  % Computer : n015.cluster.edu
% 0.15/0.36  % Model    : x86_64 x86_64
% 0.15/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.36  % Memory   : 8042.1875MB
% 0.15/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.36  % CPULimit : 300
% 0.15/0.36  % WCLimit  : 600
% 0.15/0.36  % DateTime : Sat Jun 18 01:00:13 EDT 2022
% 0.15/0.36  % CPUTime  : 
% 0.81/1.08  ============================== Prover9 ===============================
% 0.81/1.08  Prover9 (32) version 2009-11A, November 2009.
% 0.81/1.08  Process 21549 was started by sandbox on n015.cluster.edu,
% 0.81/1.08  Sat Jun 18 01:00:13 2022
% 0.81/1.08  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_21396_n015.cluster.edu".
% 0.81/1.08  ============================== end of head ===========================
% 0.81/1.08  
% 0.81/1.08  ============================== INPUT =================================
% 0.81/1.08  
% 0.81/1.08  % Reading from file /tmp/Prover9_21396_n015.cluster.edu
% 0.81/1.08  
% 0.81/1.08  set(prolog_style_variables).
% 0.81/1.08  set(auto2).
% 0.81/1.08      % set(auto2) -> set(auto).
% 0.81/1.08      % set(auto) -> set(auto_inference).
% 0.81/1.08      % set(auto) -> set(auto_setup).
% 0.81/1.08      % set(auto_setup) -> set(predicate_elim).
% 0.81/1.08      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.81/1.08      % set(auto) -> set(auto_limits).
% 0.81/1.08      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.81/1.08      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.81/1.08      % set(auto) -> set(auto_denials).
% 0.81/1.08      % set(auto) -> set(auto_process).
% 0.81/1.08      % set(auto2) -> assign(new_constants, 1).
% 0.81/1.08      % set(auto2) -> assign(fold_denial_max, 3).
% 0.81/1.08      % set(auto2) -> assign(max_weight, "200.000").
% 0.81/1.08      % set(auto2) -> assign(max_hours, 1).
% 0.81/1.08      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.81/1.08      % set(auto2) -> assign(max_seconds, 0).
% 0.81/1.08      % set(auto2) -> assign(max_minutes, 5).
% 0.81/1.08      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.81/1.08      % set(auto2) -> set(sort_initial_sos).
% 0.81/1.08      % set(auto2) -> assign(sos_limit, -1).
% 0.81/1.08      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.81/1.08      % set(auto2) -> assign(max_megs, 400).
% 0.81/1.08      % set(auto2) -> assign(stats, some).
% 0.81/1.08      % set(auto2) -> clear(echo_input).
% 0.81/1.08      % set(auto2) -> set(quiet).
% 0.81/1.08      % set(auto2) -> clear(print_initial_clauses).
% 0.81/1.08      % set(auto2) -> clear(print_given).
% 0.81/1.08  assign(lrs_ticks,-1).
% 0.81/1.08  assign(sos_limit,10000).
% 0.81/1.08  assign(order,kbo).
% 0.81/1.08  set(lex_order_vars).
% 0.81/1.08  clear(print_given).
% 0.81/1.08  
% 0.81/1.08  % formulas(sos).  % not echoed (37 formulas)
% 0.81/1.08  
% 0.81/1.08  ============================== end of input ==========================
% 0.81/1.08  
% 0.81/1.08  % From the command line: assign(max_seconds, 300).
% 0.81/1.08  
% 0.81/1.08  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.81/1.08  
% 0.81/1.08  % Formulas that are not ordinary clauses:
% 0.81/1.08  1 (all X all Y (unequally_directed_opposite_lines(X,Y) <-> unequally_directed_lines(X,reverse_line(Y)))) # label(a1_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  2 (all X all Y (right_apart_point(X,Y) <-> left_apart_point(X,reverse_line(Y)))) # label(a2_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  3 (all X all Y (right_convergent_lines(X,Y) <-> left_convergent_lines(X,reverse_line(Y)))) # label(a3_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  4 (all X all Y (equally_directed_lines(X,Y) <-> -unequally_directed_lines(X,Y))) # label(a4_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  5 (all X all Y (equally_directed_opposite_lines(X,Y) <-> -unequally_directed_opposite_lines(X,Y))) # label(a5_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  6 (all A all L (apart_point_and_line(A,L) <-> left_apart_point(A,L) | right_apart_point(A,L))) # label(a6_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  7 (all L all M (convergent_lines(L,M) <-> unequally_directed_lines(L,M) & unequally_directed_opposite_lines(L,M))) # label(a7_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  8 (all A all B all L (divides_points(L,A,B) <-> left_apart_point(A,L) & right_apart_point(B,L) | right_apart_point(A,L) & left_apart_point(B,L))) # label(a8_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  9 (all L all A all B (before_on_line(L,A,B) <-> distinct_points(A,B) & incident_point_and_line(A,L) & incident_point_and_line(B,L) & equally_directed_lines(L,line_connecting(A,B)))) # label(ax4_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  10 (all L all A all B all C (between_on_line(L,A,B,C) <-> before_on_line(L,A,B) & before_on_line(L,B,C) | before_on_line(L,C,B) & before_on_line(L,B,A))) # label(a9_defns) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  11 (all A -distinct_points(A,A)) # label(ax1_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  12 (all A all B all C (distinct_points(A,B) -> distinct_points(A,C) | distinct_points(B,C))) # label(ax2_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  13 (all L -distinct_lines(L,L)) # label(ax3_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  14 (all L all M all N (distinct_lines(L,M) -> distinct_lines(L,N) | distinct_lines(M,N))) # label(ax4_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  15 (all L equally_directed_lines(L,L)) # label(ax5_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  16 (all L all M all N (unequally_directed_lines(L,M) -> unequally_directed_lines(L,N) | unequally_directed_lines(M,N))) # label(ax6_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  17 (all L all M all N (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> unequally_directed_lines(L,N) & unequally_directed_lines(L,reverse_line(N)) | unequally_directed_lines(M,N) & unequally_directed_lines(M,reverse_line(N)))) # label(ax7_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  18 (all L all M (unequally_directed_lines(L,M) | unequally_directed_lines(L,reverse_line(M)))) # label(ax8_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  19 (all L all M (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> left_convergent_lines(L,M) | left_convergent_lines(L,reverse_line(M)))) # label(ax9_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  20 (all A all L -(left_apart_point(A,L) | left_apart_point(A,reverse_line(L)))) # label(ax10_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  21 (all L all M -(left_convergent_lines(L,M) | left_convergent_lines(L,reverse_line(M)))) # label(ax11_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  22 (all A all B (point(A) & point(B) & distinct_points(A,B) -> line(line_connecting(A,B)))) # label(ax1_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  23 (all L all M (line(L) & line(M) & unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> point(intersection_point(L,M)))) # label(ax2_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  24 (all L all A (point(A) & line(L) -> line(parallel_through_point(L,A)))) # label(ax3_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  25 (all L (line(L) -> line(reverse_line(L)))) # label(ax4_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  26 (all A all B (distinct_points(A,B) -> -apart_point_and_line(A,line_connecting(A,B)) & -apart_point_and_line(B,line_connecting(A,B)))) # label(ax5_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  27 (all L all M (unequally_directed_lines(L,M) & unequally_directed_lines(L,reverse_line(M)) -> -apart_point_and_line(intersection_point(L,M),L) & -apart_point_and_line(intersection_point(L,M),M))) # label(ax6_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  28 (all A all L -apart_point_and_line(A,parallel_through_point(L,A))) # label(ax7_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  29 (all L -distinct_lines(L,reverse_line(L))) # label(ax8_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  30 (all A all B (distinct_points(A,B) -> equally_directed_lines(line_connecting(A,B),reverse_line(line_connecting(B,A))))) # label(ax9_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  31 (all A all L equally_directed_lines(parallel_through_point(L,A),L)) # label(ax10_cons_objs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  32 (all A all B all L all M (distinct_points(A,B) & distinct_lines(L,M) -> left_apart_point(A,L) | left_apart_point(B,L) | left_apart_point(A,M) | left_apart_point(B,M) | left_apart_point(A,reverse_line(L)) | left_apart_point(B,reverse_line(L)) | left_apart_point(A,reverse_line(M)) | left_apart_point(B,reverse_line(M)))) # label(ax1_uniq_cons) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.08  33 (all A all B all L (distinct_points(A,B) & left_apart_point(A,L) -> left_apart_point(B,L) | left_convergent_lines(line_connecting(A,B),L))) # label(ax2_uniq_cons) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.09  34 (all A all B all L (left_apart_point(A,L) -> distinct_points(A,B) | left_apart_point(B,L))) # label(ax1_subs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.09  35 (all A all L all M (left_apart_point(A,L) & unequally_directed_lines(L,M) -> distinct_lines(L,M) | left_apart_point(A,reverse_line(M)))) # label(ax2_subs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.09  36 (all L all M all N (left_convergent_lines(L,M) -> unequally_directed_lines(M,N) | left_convergent_lines(L,N))) # label(ax3_subs) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.09  37 -(all L all A all B all C all D (distinct_points(A,C) & distinct_points(B,C) & incident_point_and_line(C,L) & left_apart_point(D,L) -> (before_on_line(L,A,B) & before_on_line(L,B,C) -> before_on_line(L,A,C)))) # label(con) # label(negated_conjecture) # label(non_clause).  [assumption].
% 0.81/1.09  
% 0.81/1.09  ============================== end of process non-clausal formulas ===
% 0.81/1.09  
% 0.81/1.09  ============================== PROCESS INITIAL CLAUSES ===============
% 0.81/1.09  
% 0.81/1.09  ============================== PREDICATE ELIMINATION =================
% 0.81/1.09  38 -equally_directed_lines(A,B) | -unequally_directed_lines(A,B) # label(a4_defns) # label(axiom).  [clausify(4)].
% 0.81/1.09  39 equally_directed_lines(A,A) # label(ax5_basics) # label(axiom).  [clausify(15)].
% 0.81/1.09  40 equally_directed_lines(parallel_through_point(A,B),A) # label(ax10_cons_objs) # label(axiom).  [clausify(31)].
% 0.81/1.09  41 equally_directed_lines(A,B) | unequally_directed_lines(A,B) # label(a4_defns) # label(axiom).  [clausify(4)].
% 0.81/1.09  Derived: -unequally_directed_lines(A,A).  [resolve(38,a,39,a)].
% 0.81/1.09  Derived: -unequally_directed_lines(parallel_through_point(A,B),A).  [resolve(38,a,40,a)].
% 0.81/1.09  42 -before_on_line(A,B,C) | equally_directed_lines(A,line_connecting(B,C)) # label(ax4_defns) # label(axiom).  [clausify(9)].
% 0.81/1.09  Derived: -before_on_line(A,B,C) | -unequally_directed_lines(A,line_connecting(B,C)).  [resolve(42,b,38,a)].
% 0.81/1.09  43 -distinct_points(A,B) | equally_directed_lines(line_connecting(A,B),reverse_line(line_connecting(B,A))) # label(ax9_cons_objs) # label(axiom).  [clausify(30)].
% 0.81/1.09  Derived: -distinct_points(A,B) | -unequally_directed_lines(line_connecting(A,B),reverse_line(line_connecting(B,A))).  [resolve(43,b,38,a)].
% 0.81/1.09  44 before_on_line(A,B,C) | -distinct_points(B,C) | -incident_point_and_line(B,A) | -incident_point_and_line(C,A) | -equally_directed_lines(A,line_connecting(B,C)) # label(ax4_defns) # label(axiom).  [clausify(9)].
% 0.81/1.09  Derived: before_on_line(line_connecting(A,B),A,B) | -distinct_points(A,B) | -incident_point_and_line(A,line_connecting(A,B)) | -incident_point_and_line(B,line_connecting(A,B)).  [resolve(44,e,39,a)].
% 0.81/1.09  Derived: before_on_line(parallel_through_point(line_connecting(A,B),C),A,B) | -distinct_points(A,B) | -incident_point_and_line(A,parallel_through_point(line_connecting(A,B),C)) | -incident_point_and_line(B,parallel_through_point(line_connecting(A,B),C)).  [resolve(44,e,40,a)].
% 0.81/1.09  Derived: before_on_line(A,B,C) | -distinct_points(B,C) | -incident_point_and_line(B,A) | -incident_point_and_line(C,A) | unequally_directed_lines(A,line_connecting(B,C)).  [resolve(44,e,41,a)].
% 0.81/1.09  45 -equally_directed_opposite_lines(A,B) | -unequally_directed_opposite_lines(A,B) # label(a5_defns) # label(axiom).  [clausify(5)].
% 0.81/1.09  46 equally_directed_opposite_lines(A,B) | unequally_directed_opposite_lines(A,B) # label(a5_defns) # label(axiom).  [clausify(5)].
% 0.81/1.09  47 apart_point_and_line(A,B) | -left_apart_point(A,B) # label(a6_defns) # label(axiom).  [clausify(6)].
% 0.81/1.09  48 -apart_point_and_line(A,parallel_through_point(B,A)) # label(ax7_cons_objs) # label(axiom).  [clausify(28)].
% 0.81/1.09  49 -distinct_points(A,B) | -apart_point_and_line(A,line_connecting(A,B)) # label(ax5_cons_objs) # label(axiom).  [clausify(26)].
% 0.81/1.09  50 -distinct_points(A,B) | -apart_point_and_line(B,line_connecting(A,B)) # label(ax5_cons_objs) # label(axiom).  [clausify(26)].
% 0.81/1.09  51 -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | -apart_point_and_line(intersection_point(A,B),A) # label(ax6_cons_objs) # label(axiom).  [clausify(27)].
% 0.81/1.09  52 -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | -apart_point_and_line(intersection_point(A,B),B) # label(ax6_cons_objs) # label(axiom).  [clausify(27)].
% 0.81/1.09  Derived: -left_apart_point(A,parallel_through_point(B,A)).  [resolve(47,a,48,a)].
% 0.81/1.09  Derived: -left_apart_point(A,line_connecting(A,B)) | -distinct_points(A,B).  [resolve(47,a,49,b)].
% 0.81/1.09  Derived: -left_apart_point(A,line_connecting(B,A)) | -distinct_points(B,A).  [resolve(47,a,50,b)].
% 0.81/1.09  Derived: -left_apart_point(intersection_point(A,B),A) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)).  [resolve(47,a,51,c)].
% 0.81/1.09  Derived: -left_apart_point(intersection_point(A,B),B) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)).  [resolve(47,a,52,c)].
% 0.81/1.09  53 apart_point_and_line(A,B) | -right_apart_point(A,B) # label(a6_defns) # label(axiom).  [clausify(6)].
% 0.81/1.09  Derived: -right_apart_point(A,parallel_through_point(B,A)).  [resolve(53,a,48,a)].
% 0.81/1.09  Derived: -right_apart_point(A,line_connecting(A,B)) | -distinct_points(A,B).  [resolve(53,a,49,b)].
% 0.81/1.09  Derived: -right_apart_point(A,line_connecting(B,A)) | -distinct_points(B,A).  [resolve(53,a,50,b)].
% 0.81/1.09  Derived: -right_apart_point(intersection_point(A,B),A) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)).  [resolve(53,a,51,c)].
% 0.81/1.09  Derived: -right_apart_point(intersection_point(A,B),B) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)).  [resolve(53,a,52,c)].
% 0.81/1.09  54 -apart_point_and_line(A,B) | left_apart_point(A,B) | right_apart_point(A,B) # label(a6_defns) # label(axiom).  [clausify(6)].
% 0.81/1.09  55 convergent_lines(A,B) | -unequally_directed_lines(A,B) | -unequally_directed_opposite_lines(A,B) # label(a7_defns) # label(axiom).  [clausify(7)].
% 0.81/1.09  56 -convergent_lines(A,B) | unequally_directed_lines(A,B) # label(a7_defns) # label(axiom).  [clausify(7)].
% 0.81/1.09  57 -convergent_lines(A,B) | unequally_directed_opposite_lines(A,B) # label(a7_defns) # label(axiom).  [clausify(7)].
% 0.81/1.09  58 unequally_directed_opposite_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) # label(a1_defns) # label(axiom).  [clausify(1)].
% 0.81/1.09  59 -unequally_directed_opposite_lines(A,B) | unequally_directed_lines(A,reverse_line(B)) # label(a1_defns) # label(axiom).  [clausify(1)].
% 0.81/1.09  60 right_convergent_lines(A,B) | -left_convergent_lines(A,reverse_line(B)) # label(a3_defns) # label(axiom).  [clausify(3)].
% 0.81/1.09  61 -right_convergent_lines(A,B) | left_convergent_lines(A,reverse_line(B)) # label(a3_defns) # label(axiom).  [clausify(3)].
% 0.81/1.09  62 divides_points(A,B,C) | -left_apart_point(B,A) | -right_apart_point(C,A) # label(a8_defns) # label(axiom).  [clausify(8)].
% 0.81/1.09  63 -divides_points(A,B,C) | left_apart_point(B,A) | right_apart_point(B,A) # label(a8_defns) # label(axiom).  [clausify(8)].
% 0.81/1.09  64 -divides_points(A,B,C) | left_apart_point(B,A) | left_apart_point(C,A) # label(a8_defns) # label(axiom).  [clausify(8)].
% 0.81/1.09  65 -divides_points(A,B,C) | right_apart_point(C,A) | right_apart_point(B,A) # label(a8_defns) # label(axiom).  [clausify(8)].
% 0.81/1.09  66 -divides_points(A,B,C) | right_apart_point(C,A) | left_apart_point(C,A) # label(a8_defns) # label(axiom).  [clausify(8)].
% 0.81/1.09  67 divides_points(A,B,C) | -right_apart_point(B,A) | -left_apart_point(C,A) # label(a8_defns) # label(axiom).  [clausify(8)].
% 0.81/1.09  68 right_apart_point(A,B) | -left_apart_point(A,reverse_line(B)) # label(a2_defns) # label(axiom).  [clausify(2)].
% 0.81/1.09  69 -right_apart_point(A,B) | left_apart_point(A,reverse_line(B)) # label(a2_defns) # label(axiom).  [clausify(2)].
% 0.81/1.09  70 -right_apart_point(A,parallel_through_point(B,A)).  [resolve(53,a,48,a)].
% 0.81/1.09  Derived: -left_apart_point(A,reverse_line(parallel_through_point(B,A))).  [resolve(70,a,68,a)].
% 0.81/1.09  71 -right_apart_point(A,line_connecting(A,B)) | -distinct_points(A,B).  [resolve(53,a,49,b)].
% 0.81/1.09  Derived: -distinct_points(A,B) | -left_apart_point(A,reverse_line(line_connecting(A,B))).  [resolve(71,a,68,a)].
% 0.81/1.09  72 -right_apart_point(A,line_connecting(B,A)) | -distinct_points(B,A).  [resolve(53,a,50,b)].
% 0.81/1.09  Derived: -distinct_points(A,B) | -left_apart_point(B,reverse_line(line_connecting(A,B))).  [resolve(72,a,68,a)].
% 0.81/1.09  73 -right_apart_point(intersection_point(A,B),A) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)).  [resolve(53,a,51,c)].
% 0.81/1.09  Derived: -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | -left_apart_point(intersection_point(A,B),reverse_line(A)).  [resolve(73,a,68,a)].
% 0.81/1.09  74 -right_apart_point(intersection_point(A,B),B) | -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)).  [resolve(53,a,52,c)].
% 0.81/1.09  Derived: -unequally_directed_lines(A,B) | -unequally_directed_lines(A,reverse_line(B)) | -left_apart_point(intersection_point(A,B),reverse_line(B)).  [resolve(74,a,68,a)].
% 0.81/1.09  75 between_on_line(A,B,C,D) | -before_on_line(A,B,C) | -before_on_line(A,C,D) # label(a9_defns) # label(axiom).  [clausify(10)].
% 0.81/1.09  76 -between_on_line(A,B,C,D) | before_on_line(A,B,C) | before_on_line(A,D,C) # label(a9_defns) # label(axiom).  [clausify(10)].
% 0.81/1.09  77 -between_on_line(A,B,C,D) | before_on_line(A,B,C) | before_on_line(A,C,B) # label(a9_defns) # label(axiom).  [clausify(10)].
% 0.81/1.09  78 -between_on_line(A,B,C,D) | before_on_line(A,C,D) | before_on_line(A,D,C) # label(a9_defns) # label(axiom).  [clausify(10)].
% 0.81/1.09  79 -between_on_line(A,B,C,D) | before_on_line(A,C,D) | before_on_line(A,C,B) # label(a9_defns) # label(axiom).  [clausify(10)].
% 0.81/1.09  80 between_on_line(A,B,C,D) | -before_on_line(A,D,C) | -before_on_line(A,C,B) # label(a9_defns) # label(axiom).  [clausify(10)].
% 0.81/1.09  81 -before_on_line(c1,c2,c4) # label(con) # label(negated_conjecture).  [clausify(37)].
% 0.81/1.09  82 before_on_line(c1,c2,c3) # label(con) # label(negated_conjecture).  [clausify(37)].
% 0.81/1.09  83 before_on_line(c1,c3,c4) # label(con) # label(negated_conjecture).  [clausify(37)].
% 0.81/1.09  84 -before_on_line(A,B,C) | distinct_points(B,C) # label(ax4_defns) # label(axiom).  [clausify(9)].
% 0.81/1.09  Derived: distinct_points(c2,c3).  [resolve(84,a,82,a)].
% 0.81/1.09  Derived: distinct_points(c3,c4).  [resolve(84,a,83,a)].
% 0.81/1.09  85 -before_on_line(A,B,C) | incident_point_and_line(B,A) # label(ax4_defns) # label(axiom).  [clausify(9)].
% 0.81/1.09  Derived: incident_point_and_line(c2,c1).  [resolve(85,a,82,a)].
% 0.81/1.09  Derived: incident_point_and_line(c3,c1).  [resolve(85,a,83,a)].
% 0.81/1.09  86 -before_on_line(A,B,C) | incident_point_and_line(C,A) # label(ax4_defns) # label(axiom).  [clausify(9)].
% 0.81/1.09  Derived: incident_point_and_line(c4,c1).  [resolve(86,a,83,a)].
% 0.81/1.09  87 -before_on_line(A,B,C) | -unequally_directed_lines(A,line_connecting(B,C)).  [resolve(42,b,38,a)].
% 0.81/1.09  Derived: -unequally_directed_lines(c1,line_connecting(c2,c3)).  [resolve(87,a,82,a)].
% 0.81/1.09  Derived: -unequally_directed_lines(c1,line_connecting(c3,c4)).  [resolve(87,a,83,a)].
% 0.81/1.09  88 before_on_line(line_connecting(A,B),A,B) | -distinct_points(A,B) | -incident_point_and_line(A,line_connecting(A,B)) | -incident_point_and_line(B,line_connecting(A,B)).  [resolve(44,e,39,a)].
% 0.81/1.09  Derived: -distinct_points(A,B) | -incident_point_and_line(A,line_connecting(A,B)) | -incident_point_and_line(B,line_connecting(A,B)) | -unequally_directed_lines(line_connecting(A,B),line_connecting(A,B)).  [resolve(88,a,87,a)].
% 0.81/1.09  89 before_on_line(parallel_through_point(line_connecting(A,B),C),A,B) | -distinct_points(A,B) | -incident_point_and_line(A,parallel_through_point(line_connecting(A,B),C)) | -incident_point_and_line(B,parallel_through_point(line_connecting(A,B),C)).  [resolve(44,e,40,a)].
% 0.81/1.09  Derived: -distinct_points(A,B) | -incident_point_and_line(A,parallel_through_point(line_connecting(A,B),C)) | -incident_point_and_line(B,parallel_through_point(line_connecting(A,B),C)) | -unequally_directed_lines(parallel_through_point(line_connecting(A,B),C),line_connecting(A,B)).  [resolve(89,a,87,a)].
% 0.81/1.09  90 before_on_line(A,B,C) | -distinct_points(B,C) | -incident_point_and_line(B,A) | -incident_point_and_line(C,A) | unequally_directed_lines(A,line_connecting(B,C)).  [resolve(44,e,41,a)].
% 0.81/1.09  Derived: -distinct_points(c2,c4) | -incident_point_and_line(c2,c1) | -incident_point_and_line(c4,c1) | unequally_directed_lines(c1,line_connecting(c2,c4)).  [resolve(90,a,81,a)].
% 0.81/1.09  
% 0.81/1.09  ============================== end predicate elimination =============
% 0.81/1.09  
% 0.81/1.09  Auto_denials:  (non-Horn, no changes).
% 0.81/1.09  
% 0.81/1.09  Term ordering decisions:
% 0.81/1.09  
% 0.81/1.09  % Assigning unary symbol reverse_line kb_weight 0 and highest precedence (17).
% 0.81/1.09  Function symbol KB weights:  c1=1. c2=1. c3=1. c4=1. c5=1. line_connecting=1. intersection_point=1. parallel_through_point=1. reverse_line=0.
% 0.81/1.09  
% 0.81/1.09  ============================== PROOF =================================
% 0.81/1.09  % SZS status Theorem
% 0.81/1.09  % SZS output start Refutation
% 0.81/1.09  
% 0.81/1.09  % Proof 1 at 0.02 (+ 0.00) seconds.
% 0.81/1.09  % Length of proof is 5.
% 0.81/1.09  % Level of proof is 2.
% 0.81/1.09  % Maximum clause weight is 3.000.
% 0.81/1.09  % Given clauses 0.
% 0.81/1.09  
% 0.81/1.09  20 (all A all L -(left_apart_point(A,L) | left_apart_point(A,reverse_line(L)))) # label(ax10_basics) # label(axiom) # label(non_clause).  [assumption].
% 0.81/1.09  37 -(all L all A all B all C all D (distinct_points(A,C) & distinct_points(B,C) & incident_point_and_line(C,L) & left_apart_point(D,L) -> (before_on_line(L,A,B) & before_on_line(L,B,C) -> before_on_line(L,A,C)))) # label(con) # label(negated_conjecture) # label(non_clause).  [assumption].
% 0.81/1.09  94 left_apart_point(c5,c1) # label(con) # label(negated_conjecture).  [clausify(37)].
% 0.81/1.09  98 -left_apart_point(A,B) # label(ax10_basics) # label(axiom).  [clausify(20)].
% 0.81/1.09  99 $F.  [resolve(98,a,94,a)].
% 0.81/1.09  
% 0.81/1.09  % SZS output end Refutation
% 0.81/1.09  ============================== end of proof ==========================
% 0.81/1.09  
% 0.81/1.09  ============================== STATISTICS ============================
% 0.81/1.09  
% 0.81/1.09  Given=0. Generated=8. Kept=8. proofs=1.
% 0.81/1.09  Usable=0. Sos=0. Demods=0. Limbo=7, Disabled=61. Hints=0.
% 0.81/1.09  Megabytes=0.10.
% 0.81/1.09  User_CPU=0.02, System_CPU=0.00, Wall_clock=0.
% 0.81/1.09  
% 0.81/1.09  ============================== end of statistics =====================
% 0.81/1.09  
% 0.81/1.09  ============================== end of search =========================
% 0.81/1.09  
% 0.81/1.09  THEOREM PROVED
% 0.81/1.09  % SZS status Theorem
% 0.81/1.09  
% 0.81/1.09  Exiting with 1 proof.
% 0.81/1.09  
% 0.81/1.09  Process 21549 exit (max_proofs) Sat Jun 18 01:00:13 2022
% 0.81/1.09  Prover9 interrupted
%------------------------------------------------------------------------------