TSTP Solution File: HEN004-6 by Leo-III-SAT---1.7.10

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Leo-III-SAT---1.7.10
% Problem  : HEN004-6 : TPTP v8.1.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n020.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  : 300s
% DateTime : Tue May  7 10:34:37 EDT 2024

% Result   : Unsatisfiable 100.48s 14.90s
% Output   : Refutation 100.48s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   12
% Syntax   : Number of formulae    :   67 (  33 unt;   4 typ;   0 def)
%            Number of atoms       :  113 (  50 equ;   0 cnn)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :  436 (  56   ~;  38   |;   0   &; 342   @)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   6 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    4 (   4   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    7 (   4 usr;   4 con; 0-2 aty)
%            Number of variables   :   95 (   0   ^  95   !;   0   ?;  95   :)

% Comments : 
%------------------------------------------------------------------------------
thf(divide_type,type,
    divide: $i > $i > $i ).

thf(a_type,type,
    a: $i ).

thf(zero_type,type,
    zero: $i ).

thf(less_equal_type,type,
    less_equal: $i > $i > $o ).

thf(6,axiom,
    ! [A: $i] : ( less_equal @ zero @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_is_smallest) ).

thf(22,plain,
    ! [A: $i] : ( less_equal @ zero @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(7,axiom,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A )
      | ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',less_equal_and_equal) ).

thf(23,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A )
      | ( A = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(24,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A )
      | ( A = B ) ),
    inference(cnf,[status(esa)],[23]) ).

thf(25,plain,
    ! [B: $i,A: $i] :
      ( ( A = B )
      | ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A ) ),
    inference(lifteq,[status(thm)],[24]) ).

thf(50,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( B = C )
      | ~ ( less_equal @ C @ B )
      | ( ( less_equal @ zero @ A )
       != ( less_equal @ B @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[22,25]) ).

thf(51,plain,
    ! [A: $i] :
      ( ( zero = A )
      | ~ ( less_equal @ A @ zero ) ),
    inference(pattern_uni,[status(thm)],[50:[bind(A,$thf( A )),bind(B,$thf( zero )),bind(C,$thf( A ))]]) ).

thf(3,axiom,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( less_equal @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_less_equal2) ).

thf(17,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( less_equal @ A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(18,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( less_equal @ A @ B ) ),
    inference(cnf,[status(esa)],[17]) ).

thf(19,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( less_equal @ A @ B ) ),
    inference(lifteq,[status(thm)],[18]) ).

thf(1,negated_conjecture,
    ( ( divide @ a @ zero )
   != a ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_x_divide_zero_is_x) ).

thf(11,plain,
    ( ( divide @ a @ zero )
   != a ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).

thf(12,plain,
    ( ( divide @ a @ zero )
   != a ),
    inference(polarity_switch,[status(thm)],[11]) ).

thf(13,plain,
    ( ( divide @ a @ zero )
   != a ),
    inference(lifteq,[status(thm)],[12]) ).

thf(34,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A )
      | ( B != a )
      | ( A
       != ( divide @ a @ zero ) ) ),
    inference(paramod_ordered,[status(thm)],[25,13]) ).

thf(35,plain,
    ! [A: $i] :
      ( ~ ( less_equal @ ( divide @ a @ zero ) @ A )
      | ~ ( less_equal @ A @ ( divide @ a @ zero ) )
      | ( A != a ) ),
    inference(pattern_uni,[status(thm)],[34:[bind(A,$thf( divide @ a @ zero )),bind(B,$thf( B ))]]) ).

thf(81,plain,
    ( ~ ( less_equal @ ( divide @ a @ zero ) @ a )
    | ~ ( less_equal @ a @ ( divide @ a @ zero ) ) ),
    inference(simp,[status(thm)],[35]) ).

thf(4,axiom,
    ! [B: $i,A: $i] : ( less_equal @ ( divide @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_smaller_than_numerator) ).

thf(20,plain,
    ! [B: $i,A: $i] : ( less_equal @ ( divide @ A @ B ) @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(2659,plain,
    ( ~ $true
    | ~ ( less_equal @ a @ ( divide @ a @ zero ) ) ),
    inference(rewrite,[status(thm)],[81,20]) ).

thf(2660,plain,
    ~ ( less_equal @ a @ ( divide @ a @ zero ) ),
    inference(simp,[status(thm)],[2659]) ).

thf(2707,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( ( less_equal @ A @ B )
       != ( less_equal @ a @ ( divide @ a @ zero ) ) ) ),
    inference(paramod_ordered,[status(thm)],[19,2660]) ).

thf(2708,plain,
    ( ( divide @ a @ ( divide @ a @ zero ) )
   != zero ),
    inference(pattern_uni,[status(thm)],[2707:[bind(A,$thf( a )),bind(B,$thf( divide @ a @ zero ))]]) ).

thf(2908,plain,
    ! [A: $i] :
      ( ~ ( less_equal @ A @ zero )
      | ( A
       != ( divide @ a @ ( divide @ a @ zero ) ) ) ),
    inference(paramod_ordered,[status(thm)],[51,2708]) ).

thf(2909,plain,
    ~ ( less_equal @ ( divide @ a @ ( divide @ a @ zero ) ) @ zero ),
    inference(pattern_uni,[status(thm)],[2908:[bind(A,$thf( divide @ a @ ( divide @ a @ zero ) ))]]) ).

thf(3617,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( ( less_equal @ A @ B )
       != ( less_equal @ ( divide @ a @ ( divide @ a @ zero ) ) @ zero ) ) ),
    inference(paramod_ordered,[status(thm)],[19,2909]) ).

thf(3618,plain,
    ( ( divide @ ( divide @ a @ ( divide @ a @ zero ) ) @ zero )
   != zero ),
    inference(pattern_uni,[status(thm)],[3617:[bind(A,$thf( divide @ a @ ( divide @ a @ zero ) )),bind(B,$thf( zero ))]]) ).

thf(3887,plain,
    ! [A: $i] :
      ( ~ ( less_equal @ A @ zero )
      | ( A
       != ( divide @ ( divide @ a @ ( divide @ a @ zero ) ) @ zero ) ) ),
    inference(paramod_ordered,[status(thm)],[51,3618]) ).

thf(3888,plain,
    ~ ( less_equal @ ( divide @ ( divide @ a @ ( divide @ a @ zero ) ) @ zero ) @ zero ),
    inference(pattern_uni,[status(thm)],[3887:[bind(A,$thf( divide @ ( divide @ a @ ( divide @ a @ zero ) ) @ zero ))]]) ).

thf(10,axiom,
    ! [A: $i] :
      ( ( divide @ zero @ A )
      = zero ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_divide_anything_is_zero) ).

thf(29,plain,
    ! [A: $i] :
      ( ( divide @ zero @ A )
      = zero ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(30,plain,
    ! [A: $i] :
      ( ( divide @ zero @ A )
      = zero ),
    inference(lifteq,[status(thm)],[29]) ).

thf(2,axiom,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( ( divide @ A @ B )
        = zero ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_less_equal1) ).

thf(14,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( ( divide @ A @ B )
        = zero ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(15,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( ( divide @ A @ B )
        = zero ) ),
    inference(cnf,[status(esa)],[14]) ).

thf(16,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
        = zero )
      | ~ ( less_equal @ A @ B ) ),
    inference(lifteq,[status(thm)],[15]) ).

thf(175,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( ( divide @ C @ D )
        = zero )
      | ( ( less_equal @ ( divide @ A @ B ) @ A )
       != ( less_equal @ C @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[20,16]) ).

thf(176,plain,
    ! [B: $i,A: $i] :
      ( ( divide @ ( divide @ A @ B ) @ A )
      = zero ),
    inference(pattern_uni,[status(thm)],[175:[bind(A,$thf( E )),bind(B,$thf( F )),bind(C,$thf( divide @ E @ F )),bind(D,$thf( E ))]]) ).

thf(184,plain,
    ! [B: $i,A: $i] :
      ( ( divide @ ( divide @ A @ B ) @ A )
      = zero ),
    inference(simp,[status(thm)],[176]) ).

thf(5,axiom,
    ! [C: $i,B: $i,A: $i] : ( less_equal @ ( divide @ ( divide @ A @ B ) @ ( divide @ C @ B ) ) @ ( divide @ ( divide @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_property) ).

thf(21,plain,
    ! [C: $i,B: $i,A: $i] : ( less_equal @ ( divide @ ( divide @ A @ B ) @ ( divide @ C @ B ) ) @ ( divide @ ( divide @ A @ C ) @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(374,plain,
    ! [E: $i,D: $i,C: $i,B: $i,A: $i] :
      ( ( less_equal @ ( divide @ ( divide @ C @ D ) @ ( divide @ E @ D ) ) @ zero )
      | ( ( divide @ ( divide @ A @ B ) @ A )
       != ( divide @ ( divide @ C @ E ) @ D ) ) ),
    inference(paramod_ordered,[status(thm)],[184,21]) ).

thf(375,plain,
    ! [B: $i,A: $i] : ( less_equal @ ( divide @ ( divide @ A @ A ) @ ( divide @ B @ A ) ) @ zero ),
    inference(pattern_uni,[status(thm)],[374:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( A )),bind(E,$thf( B ))]]) ).

thf(640,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( less_equal @ ( divide @ ( divide @ B @ B ) @ zero ) @ zero )
      | ( ( divide @ zero @ A )
       != ( divide @ C @ B ) ) ),
    inference(paramod_ordered,[status(thm)],[30,375]) ).

thf(641,plain,
    ! [A: $i] : ( less_equal @ ( divide @ ( divide @ A @ A ) @ zero ) @ zero ),
    inference(pattern_uni,[status(thm)],[640:[bind(A,$thf( A )),bind(B,$thf( A )),bind(C,$thf( zero ))]]) ).

thf(1031,plain,
    ! [B: $i,A: $i] :
      ( ( zero = B )
      | ( ( less_equal @ ( divide @ ( divide @ A @ A ) @ zero ) @ zero )
       != ( less_equal @ B @ zero ) ) ),
    inference(paramod_ordered,[status(thm)],[641,51]) ).

thf(1032,plain,
    ! [A: $i] :
      ( ( divide @ ( divide @ A @ A ) @ zero )
      = zero ),
    inference(pattern_uni,[status(thm)],[1031:[bind(A,$thf( F )),bind(B,$thf( divide @ ( divide @ F @ F ) @ zero ))]]) ).

thf(1086,plain,
    ! [A: $i] :
      ( ( divide @ ( divide @ A @ A ) @ zero )
      = zero ),
    inference(simp,[status(thm)],[1032]) ).

thf(1390,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( less_equal @ B @ C )
      | ( ( divide @ ( divide @ A @ A ) @ zero )
       != ( divide @ B @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[1086,19]) ).

thf(1391,plain,
    ! [A: $i] : ( less_equal @ ( divide @ A @ A ) @ zero ),
    inference(pattern_uni,[status(thm)],[1390:[bind(A,$thf( E )),bind(B,$thf( divide @ E @ E )),bind(C,$thf( zero ))]]) ).

thf(1422,plain,
    ! [A: $i] : ( less_equal @ ( divide @ A @ A ) @ zero ),
    inference(simp,[status(thm)],[1391]) ).

thf(2123,plain,
    ! [B: $i,A: $i] :
      ( ( zero = B )
      | ( ( less_equal @ ( divide @ A @ A ) @ zero )
       != ( less_equal @ B @ zero ) ) ),
    inference(paramod_ordered,[status(thm)],[1422,51]) ).

thf(2124,plain,
    ! [A: $i] :
      ( ( divide @ A @ A )
      = zero ),
    inference(pattern_uni,[status(thm)],[2123:[bind(A,$thf( D )),bind(B,$thf( divide @ D @ D ))]]) ).

thf(2145,plain,
    ! [A: $i] :
      ( ( divide @ A @ A )
      = zero ),
    inference(simp,[status(thm)],[2124]) ).

thf(401,plain,
    ! [D: $i,C: $i,B: $i,A: $i] :
      ( ( less_equal @ ( divide @ ( divide @ B @ C ) @ zero ) @ ( divide @ ( divide @ B @ D ) @ C ) )
      | ( ( divide @ zero @ A )
       != ( divide @ D @ C ) ) ),
    inference(paramod_ordered,[status(thm)],[30,21]) ).

thf(402,plain,
    ! [B: $i,A: $i] : ( less_equal @ ( divide @ ( divide @ B @ A ) @ zero ) @ ( divide @ ( divide @ B @ zero ) @ A ) ),
    inference(pattern_uni,[status(thm)],[401:[bind(A,$thf( A )),bind(B,$thf( B )),bind(C,$thf( A )),bind(D,$thf( zero ))]]) ).

thf(26412,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ( less_equal @ ( divide @ ( divide @ C @ B ) @ zero ) @ zero )
      | ( ( divide @ A @ A )
       != ( divide @ ( divide @ C @ zero ) @ B ) ) ),
    inference(paramod_ordered,[status(thm)],[2145,402]) ).

thf(26413,plain,
    ! [A: $i] : ( less_equal @ ( divide @ ( divide @ A @ ( divide @ A @ zero ) ) @ zero ) @ zero ),
    inference(pattern_uni,[status(thm)],[26412:[bind(A,$thf( divide @ F @ zero )),bind(B,$thf( divide @ F @ zero )),bind(C,$thf( F ))]]) ).

thf(26568,plain,
    ! [A: $i] : ( less_equal @ ( divide @ ( divide @ A @ ( divide @ A @ zero ) ) @ zero ) @ zero ),
    inference(simp,[status(thm)],[26413]) ).

thf(32464,plain,
    ~ $true,
    inference(rewrite,[status(thm)],[3888,26568]) ).

thf(32465,plain,
    $false,
    inference(simp,[status(thm)],[32464]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : HEN004-6 : TPTP v8.1.2. Released v1.0.0.
% 0.11/0.16  % Command  : run_Leo-III %s %d
% 0.16/0.37  % Computer : n020.cluster.edu
% 0.16/0.37  % Model    : x86_64 x86_64
% 0.16/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.37  % Memory   : 8042.1875MB
% 0.16/0.37  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.16/0.37  % CPULimit : 300
% 0.16/0.37  % WCLimit  : 300
% 0.16/0.37  % DateTime : Mon May  6 18:37:54 EDT 2024
% 0.16/0.37  % CPUTime  : 
% 0.88/0.81  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.23/0.92  % [INFO] 	 Parsing done (109ms). 
% 1.23/0.93  % [INFO] 	 Running in sequential loop mode. 
% 1.49/1.14  % [INFO] 	 nitpick registered as external prover. 
% 1.49/1.14  % [INFO] 	 Scanning for conjecture ... 
% 1.73/1.19  % [INFO] 	 Found a conjecture and 9 axioms. Running axiom selection ... 
% 1.80/1.21  % [INFO] 	 Axiom selection finished. Selected 9 axioms (removed 0 axioms). 
% 1.80/1.22  % [INFO] 	 Problem is propositional (TPTP CNF). 
% 1.80/1.22  % [INFO] 	 Type checking passed. 
% 1.80/1.22  % [CONFIG] 	 Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>.  Searching for refutation ... 
% 100.48/14.89  % [INFO] 	 Killing All external provers ... 
% 100.48/14.89  % Time passed: 14358ms (effective reasoning time: 13954ms)
% 100.48/14.89  % Solved by strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>
% 100.48/14.89  % Axioms used in derivation (7): zero_divide_anything_is_zero, quotient_less_equal2, less_equal_and_equal, zero_is_smallest, quotient_less_equal1, quotient_smaller_than_numerator, quotient_property
% 100.48/14.89  % No. of inferences in proof: 63
% 100.48/14.90  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 14358 ms resp. 13954 ms w/o parsing
% 100.48/14.94  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 100.48/14.94  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------