TSTP Solution File: GRP589-1 by CiME---2.01

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CiME---2.01
% Problem  : GRP589-1 : TPTP v6.0.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_cime %s

% Computer : n125.star.cs.uiowa.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2609 0 2.40GHz
% Memory   : 32286.75MB
% OS       : Linux 2.6.32-431.11.2.el6.x86_64
% CPULimit : 300s
% DateTime : Tue Jun 10 00:23:32 EDT 2014

% Result   : Unsatisfiable 1.33s
% Output   : Refutation 1.33s
% Verified : 
% SZS Type : None (Parsing solution fails)
% Syntax   : Number of formulae    : 0

% Comments : 
%------------------------------------------------------------------------------
%----ERROR: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% % Problem  : GRP589-1 : TPTP v6.0.0. Released v2.6.0.
% % Command  : tptp2X_and_run_cime %s
% % Computer : n125.star.cs.uiowa.edu
% % Model    : x86_64 x86_64
% % CPU      : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
% % Memory   : 32286.75MB
% % OS       : Linux 2.6.32-431.11.2.el6.x86_64
% % CPULimit : 300
% % DateTime : Fri Jun  6 21:10:43 CDT 2014
% % CPUTime  : 1.33 
% Processing problem /tmp/CiME_3154_n125.star.cs.uiowa.edu
% #verbose 1;
% let F = signature " b1,a1 : constant;  multiply : 2;  inverse : 1;  double_divide : 2;";
% let X = vars "A B C";
% let Axioms = equations F X "
% double_divide(inverse(double_divide(double_divide(A,B),inverse(double_divide(A,inverse(C))))),B) = C;
% multiply(A,B) = inverse(double_divide(B,A));
% ";
% 
% let s1 = status F "
% b1 lr_lex;
% a1 lr_lex;
% multiply lr_lex;
% inverse lr_lex;
% double_divide lr_lex;
% ";
% 
% let p1 = precedence F "
% multiply > double_divide > inverse > a1 > b1";
% 
% let s2 = status F "
% b1 mul;
% a1 mul;
% multiply mul;
% inverse mul;
% double_divide mul;
% ";
% 
% let p2 = precedence F "
% multiply > double_divide > inverse > a1 = b1";
% 
% let o_auto = AUTO Axioms;
% 
% let o = LEX o_auto (LEX (ACRPO s1 p1) (ACRPO s2 p2));
% 
% let Conjectures = equations F X " multiply(inverse(a1),a1) = multiply(inverse(b1),b1);"
% ;
% (*
% let Red_Axioms = normalize_equations Defining_rules Axioms;
% 
% let Red_Conjectures =  normalize_equations Defining_rules Conjectures;
% *)
% #time on;
% 
% let res = prove_conj_by_ordered_completion o Axioms Conjectures;
% 
% #time off;
% 
% 
% let status = if res then "unsatisfiable" else "satisfiable";
% #quit;
% Verbose level is now 1
% 
% F : signature = <signature>
% X : variable_set = <variable set>
% 
% Axioms : (F,X) equations = { double_divide(inverse(double_divide(double_divide(A,B),
% inverse(double_divide(A,
% inverse(C))))),B)
% = C,
% multiply(A,B) = inverse(double_divide(B,A)) }
% (2 equation(s))
% s1 : F status = <status>
% p1 : F precedence = <precedence>
% s2 : F status = <status>
% p2 : F precedence = <precedence>
% o_auto : F term_ordering = <term ordering>
% o : F term_ordering = <term ordering>
% Conjectures : (F,X) equations = { multiply(inverse(a1),a1) =
% multiply(inverse(b1),b1) } (1 equation(s))
% time is now on
% 
% Initializing completion ...
% New rule produced : [1] multiply(A,B) -> inverse(double_divide(B,A))
% The conjecture has been reduced. 
% Conjecture is now:
% inverse(double_divide(a1,inverse(a1))) = inverse(double_divide(b1,inverse(b1)))
% 
% Current number of equations to process: 0
% Current number of ordered equations: 1
% Current number of rules: 1
% New rule produced :
% [2]
% double_divide(inverse(double_divide(double_divide(A,B),inverse(double_divide(A,
% inverse(C))))),B)
% -> C
% Current number of equations to process: 0
% Current number of ordered equations: 0
% Current number of rules: 2
% New rule produced :
% [3]
% double_divide(inverse(double_divide(A,inverse(double_divide(inverse(double_divide(
% double_divide(B,C),
% inverse(
% double_divide(B,
% inverse(A))))),
% inverse(V_3))))),C) -> V_3
% Current number of equations to process: 0
% Current number of ordered equations: 1
% Current number of rules: 3
% New rule produced :
% [4]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(
% double_divide(A,
% inverse(B)),
% inverse(double_divide(A,
% inverse(C))))),V_3),
% inverse(C))),V_3) -> B
% Current number of equations to process: 0
% Current number of ordered equations: 0
% Current number of rules: 4
% New rule produced :
% [5] double_divide(inverse(double_divide(A,inverse(A))),inverse(B)) -> B
% Current number of equations to process: 5
% Current number of ordered equations: 0
% Current number of rules: 5
% New rule produced :
% [6]
% double_divide(inverse(inverse(double_divide(A,inverse(A)))),inverse(B)) -> B
% Current number of equations to process: 12
% Current number of ordered equations: 0
% Current number of rules: 6
% New rule produced :
% [7] double_divide(inverse(double_divide(A,inverse(B))),inverse(A)) -> B
% Current number of equations to process: 13
% Current number of ordered equations: 0
% Current number of rules: 7
% New rule produced :
% [8]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(A,
% inverse(A))),B),
% inverse(C))),B) -> C
% Current number of equations to process: 12
% Current number of ordered equations: 0
% Current number of rules: 8
% New rule produced :
% [9]
% double_divide(inverse(inverse(inverse(inverse(double_divide(A,inverse(A)))))),
% inverse(B)) -> B
% Current number of equations to process: 17
% Current number of ordered equations: 0
% Current number of rules: 9
% New rule produced :
% [10]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(A,
% inverse(B))),C),
% inverse(B))),C) -> A
% Current number of equations to process: 16
% Current number of ordered equations: 0
% Current number of rules: 10
% New rule produced :
% [11]
% double_divide(inverse(A),inverse(inverse(double_divide(B,inverse(A))))) -> B
% Current number of equations to process: 19
% Current number of ordered equations: 0
% Current number of rules: 11
% New rule produced :
% [12]
% double_divide(inverse(inverse(inverse(double_divide(A,inverse(A))))),
% inverse(B)) -> B
% Current number of equations to process: 20
% Current number of ordered equations: 0
% Current number of rules: 12
% New rule produced :
% [13]
% double_divide(inverse(double_divide(A,inverse(double_divide(B,inverse(A))))),C)
% -> double_divide(B,C)
% Current number of equations to process: 23
% Current number of ordered equations: 0
% Current number of rules: 13
% New rule produced :
% [14]
% double_divide(inverse(A),inverse(inverse(double_divide(B,inverse(B))))) -> A
% Current number of equations to process: 28
% Current number of ordered equations: 0
% Current number of rules: 14
% New rule produced :
% [15]
% double_divide(inverse(A),inverse(inverse(inverse(double_divide(B,inverse(B))))))
% -> A
% Current number of equations to process: 27
% Current number of ordered equations: 0
% Current number of rules: 15
% New rule produced :
% [16]
% double_divide(inverse(double_divide(double_divide(inverse(inverse(double_divide(A,
% inverse(A)))),B),
% inverse(C))),B) -> C
% Current number of equations to process: 27
% Current number of ordered equations: 0
% Current number of rules: 16
% New rule produced :
% [17]
% double_divide(inverse(double_divide(double_divide(A,inverse(B)),inverse(B))),
% inverse(double_divide(A,inverse(C)))) -> C
% Current number of equations to process: 26
% Current number of ordered equations: 0
% Current number of rules: 17
% New rule produced :
% [18]
% double_divide(inverse(double_divide(A,inverse(double_divide(inverse(double_divide(B,
% inverse(A))),
% inverse(C))))),inverse(B)) -> C
% Current number of equations to process: 25
% Current number of ordered equations: 0
% Current number of rules: 18
% New rule produced :
% [19]
% double_divide(inverse(A),inverse(inverse(double_divide(double_divide(B,
% inverse(C)),inverse(
% double_divide(B,
% inverse(A)))))))
% -> C
% Current number of equations to process: 23
% Current number of ordered equations: 0
% Current number of rules: 19
% New rule produced :
% [20]
% double_divide(inverse(inverse(inverse(inverse(inverse(double_divide(A,
% inverse(A))))))),
% inverse(B)) -> B
% Current number of equations to process: 33
% Current number of ordered equations: 0
% Current number of rules: 20
% New rule produced :
% [21]
% double_divide(inverse(A),inverse(inverse(inverse(inverse(inverse(double_divide(B,
% inverse(B))))))))
% -> A
% Current number of equations to process: 32
% Current number of ordered equations: 0
% Current number of rules: 21
% New rule produced :
% [22]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(double_divide(A,
% inverse(A)))))))),
% inverse(B)) -> B
% Current number of equations to process: 35
% Current number of ordered equations: 0
% Current number of rules: 22
% New rule produced :
% [23]
% double_divide(inverse(double_divide(double_divide(inverse(inverse(inverse(
% double_divide(A,
% inverse(A))))),B),
% inverse(C))),B) -> C
% Current number of equations to process: 34
% Current number of ordered equations: 0
% Current number of rules: 23
% New rule produced :
% [24]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% double_divide(A,
% inverse(A)))))))))),
% inverse(B)) -> B
% Current number of equations to process: 33
% Current number of ordered equations: 0
% Current number of rules: 24
% New rule produced :
% [25]
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A)))))
% <->
% double_divide(inverse(double_divide(double_divide(inverse(A),B),inverse(C))),B)
% Current number of equations to process: 32
% Current number of ordered equations: 1
% Current number of rules: 25
% Rule [25]
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A)))))
% <->
% double_divide(inverse(double_divide(double_divide(inverse(A),B),
% inverse(C))),B) is composed into [25]
% inverse(double_divide(
% double_divide(V_3,
% inverse(C)),
% inverse(
% double_divide(V_3,
% inverse(A)))))
% <->
% inverse(double_divide(
% double_divide(b1,
% inverse(C)),
% inverse(
% double_divide(b1,
% inverse(A)))))
% New rule produced :
% [26]
% double_divide(inverse(double_divide(double_divide(inverse(A),B),inverse(C))),B)
% <->
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A)))))
% Rule
% [4]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(
% double_divide(A,
% inverse(B)),
% inverse(double_divide(A,
% inverse(C))))),V_3),
% inverse(C))),V_3) -> B collapsed.
% Rule
% [8]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(A,
% inverse(A))),B),
% inverse(C))),B) -> C collapsed.
% Rule
% [10]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(A,
% inverse(B))),C),
% inverse(B))),C) -> A collapsed.
% Rule
% [16]
% double_divide(inverse(double_divide(double_divide(inverse(inverse(double_divide(A,
% inverse(A)))),B),
% inverse(C))),B) -> C collapsed.
% Rule
% [23]
% double_divide(inverse(double_divide(double_divide(inverse(inverse(inverse(
% double_divide(A,
% inverse(A))))),B),
% inverse(C))),B) -> C collapsed.
% Current number of equations to process: 37
% Current number of ordered equations: 0
% Current number of rules: 21
% Rule [25]
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A)))))
% <->
% inverse(double_divide(double_divide(b1,inverse(C)),inverse(double_divide(b1,
% inverse(A))))) is composed into 
% [25]
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A))))) ->
% inverse(double_divide(C,inverse(A)))
% New rule produced :
% [27]
% inverse(double_divide(double_divide(b1,inverse(A)),inverse(double_divide(b1,
% inverse(B))))) ->
% inverse(double_divide(A,inverse(B)))
% Current number of equations to process: 39
% Current number of ordered equations: 0
% Current number of rules: 22
% New rule produced :
% [28]
% double_divide(inverse(A),inverse(inverse(B))) ->
% inverse(double_divide(A,inverse(B)))
% Rule
% [11]
% double_divide(inverse(A),inverse(inverse(double_divide(B,inverse(A))))) -> B
% collapsed.
% Rule
% [14]
% double_divide(inverse(A),inverse(inverse(double_divide(B,inverse(B))))) -> A
% collapsed.
% Rule
% [15]
% double_divide(inverse(A),inverse(inverse(inverse(double_divide(B,inverse(B))))))
% -> A collapsed.
% Rule
% [19]
% double_divide(inverse(A),inverse(inverse(double_divide(double_divide(B,
% inverse(C)),inverse(
% double_divide(B,
% inverse(A)))))))
% -> C collapsed.
% Rule
% [21]
% double_divide(inverse(A),inverse(inverse(inverse(inverse(inverse(double_divide(B,
% inverse(B))))))))
% -> A collapsed.
% Current number of equations to process: 43
% Current number of ordered equations: 0
% Current number of rules: 18
% New rule produced :
% [29] inverse(double_divide(A,inverse(double_divide(B,inverse(A))))) -> B
% Rule
% [13]
% double_divide(inverse(double_divide(A,inverse(double_divide(B,inverse(A))))),C)
% -> double_divide(B,C) collapsed.
% Current number of equations to process: 42
% Current number of ordered equations: 0
% Current number of rules: 18
% New rule produced :
% [30] inverse(double_divide(A,inverse(double_divide(B,inverse(B))))) -> A
% Current number of equations to process: 41
% Current number of ordered equations: 0
% Current number of rules: 19
% New rule produced :
% [31]
% inverse(double_divide(A,inverse(inverse(double_divide(B,inverse(B)))))) -> A
% Current number of equations to process: 40
% Current number of ordered equations: 0
% Current number of rules: 20
% New rule produced :
% [32]
% inverse(double_divide(A,inverse(inverse(inverse(double_divide(B,inverse(B)))))))
% -> A
% Current number of equations to process: 40
% Current number of ordered equations: 0
% Current number of rules: 21
% New rule produced :
% [33]
% inverse(double_divide(A,inverse(inverse(inverse(inverse(double_divide(B,
% inverse(B)))))))) ->
% A
% Current number of equations to process: 39
% Current number of ordered equations: 0
% Current number of rules: 22
% New rule produced :
% [34] inverse(double_divide(double_divide(b1,inverse(C)),b1)) -> C
% Current number of equations to process: 38
% Current number of ordered equations: 0
% Current number of rules: 23
% New rule produced :
% [35]
% inverse(double_divide(A,inverse(double_divide(double_divide(B,inverse(C)),
% inverse(C))))) <->
% double_divide(B,inverse(A))
% Current number of equations to process: 39
% Current number of ordered equations: 1
% Current number of rules: 24
% New rule produced :
% [36]
% double_divide(B,inverse(A)) <->
% inverse(double_divide(A,inverse(double_divide(double_divide(B,inverse(C)),
% inverse(C)))))
% Current number of equations to process: 39
% Current number of ordered equations: 0
% Current number of rules: 25
% New rule produced :
% [37]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% double_divide(A,
% inverse(A))))))))),
% inverse(B)) -> B
% Current number of equations to process: 38
% Current number of ordered equations: 0
% Current number of rules: 26
% New rule produced :
% [38]
% inverse(double_divide(double_divide(inverse(B),inverse(C)),inverse(B))) -> C
% Current number of equations to process: 34
% Current number of ordered equations: 0
% Current number of rules: 27
% New rule produced :
% [39]
% double_divide(A,inverse(double_divide(inverse(double_divide(double_divide(A,
% inverse(B)),
% inverse(B))),inverse(C)))) -> C
% Current number of equations to process: 41
% Current number of ordered equations: 0
% Current number of rules: 28
% New rule produced :
% [40]
% double_divide(inverse(double_divide(A,inverse(B))),inverse(double_divide(
% inverse(double_divide(B,
% inverse(A))),
% inverse(C)))) -> C
% Current number of equations to process: 39
% Current number of ordered equations: 1
% Current number of rules: 29
% New rule produced :
% [41]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(A,
% inverse(B))),
% inverse(C)),inverse(C))),inverse(B)) -> A
% Current number of equations to process: 39
% Current number of ordered equations: 0
% Current number of rules: 30
% New rule produced :
% [42]
% inverse(double_divide(A,inverse(double_divide(B,inverse(double_divide(
% inverse(double_divide(C,
% inverse(B))),
% inverse(A))))))) -> C
% Current number of equations to process: 38
% Current number of ordered equations: 0
% Current number of rules: 31
% New rule produced :
% [43]
% inverse(double_divide(double_divide(inverse(double_divide(A,inverse(V_3))),
% inverse(C)),inverse(V_3))) ->
% inverse(double_divide(C,inverse(A)))
% Current number of equations to process: 37
% Current number of ordered equations: 0
% Current number of rules: 32
% New rule produced :
% [44] double_divide(A,inverse(double_divide(inverse(A),inverse(B)))) -> B
% Current number of equations to process: 39
% Current number of ordered equations: 0
% Current number of rules: 33
% New rule produced :
% [45]
% double_divide(C,inverse(B)) <->
% double_divide(inverse(double_divide(A,inverse(B))),inverse(double_divide(C,
% inverse(A))))
% Current number of equations to process: 43
% Current number of ordered equations: 1
% Current number of rules: 34
% New rule produced :
% [46]
% double_divide(inverse(double_divide(A,inverse(B))),inverse(double_divide(C,
% inverse(A)))) <->
% double_divide(C,inverse(B))
% Current number of equations to process: 43
% Current number of ordered equations: 0
% Current number of rules: 35
% New rule produced :
% [47]
% double_divide(A,inverse(double_divide(double_divide(A,inverse(B)),inverse(
% double_divide(
% inverse(B),
% inverse(C))))))
% -> C
% Current number of equations to process: 42
% Current number of ordered equations: 0
% Current number of rules: 36
% New rule produced :
% [48]
% inverse(double_divide(A,inverse(inverse(inverse(inverse(inverse(double_divide(B,
% inverse(B)))))))))
% -> A
% Current number of equations to process: 43
% Current number of ordered equations: 0
% Current number of rules: 37
% New rule produced :
% [49]
% inverse(double_divide(A,inverse(inverse(inverse(inverse(inverse(inverse(
% double_divide(B,
% inverse(B))))))))))
% -> A
% Current number of equations to process: 48
% Current number of ordered equations: 0
% Current number of rules: 38
% New rule produced :
% [50]
% inverse(double_divide(A,inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% inverse(
% double_divide(B,
% inverse(B))))))))))))
% -> A
% Current number of equations to process: 53
% Current number of ordered equations: 0
% Current number of rules: 39
% New rule produced :
% [51]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% inverse(
% double_divide(A,
% inverse(A))))))))))),
% inverse(B)) -> B
% Current number of equations to process: 52
% Current number of ordered equations: 0
% Current number of rules: 40
% Rule [26]
% double_divide(inverse(double_divide(double_divide(inverse(A),B),
% inverse(C))),B) <->
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A))))) is composed into 
% [26]
% double_divide(inverse(double_divide(double_divide(inverse(A),B),inverse(C))),B)
% -> inverse(double_divide(C,inverse(A)))
% New rule produced :
% [52]
% double_divide(double_divide(C,inverse(A)),inverse(double_divide(C,inverse(B))))
% -> double_divide(A,inverse(B))
% Rule
% [25]
% inverse(double_divide(double_divide(V_3,inverse(C)),inverse(double_divide(V_3,
% inverse(A))))) ->
% inverse(double_divide(C,inverse(A))) collapsed.
% Rule
% [27]
% inverse(double_divide(double_divide(b1,inverse(A)),inverse(double_divide(b1,
% inverse(B))))) ->
% inverse(double_divide(A,inverse(B))) collapsed.
% Current number of equations to process: 59
% Current number of ordered equations: 0
% Current number of rules: 39
% New rule produced :
% [53]
% double_divide(inverse(double_divide(double_divide(double_divide(A,inverse(B)),C),
% inverse(double_divide(B,inverse(V_3))))),C) ->
% double_divide(A,inverse(V_3))
% Current number of equations to process: 58
% Current number of ordered equations: 0
% Current number of rules: 40
% New rule produced :
% [54]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% inverse(
% inverse(
% double_divide(A,
% inverse(A)))))))))))),
% inverse(B)) -> B
% Current number of equations to process: 56
% Current number of ordered equations: 0
% Current number of rules: 41
% New rule produced :
% [55]
% inverse(double_divide(B,inverse(double_divide(C,inverse(A))))) <->
% double_divide(inverse(double_divide(A,inverse(B))),inverse(C))
% Current number of equations to process: 61
% Current number of ordered equations: 1
% Current number of rules: 42
% New rule produced :
% [56]
% double_divide(inverse(double_divide(A,inverse(B))),inverse(C)) <->
% inverse(double_divide(B,inverse(double_divide(C,inverse(A)))))
% Rule [7] double_divide(inverse(double_divide(A,inverse(B))),inverse(A)) -> B
% collapsed.
% Rule
% [18]
% double_divide(inverse(double_divide(A,inverse(double_divide(inverse(double_divide(B,
% inverse(A))),
% inverse(C))))),inverse(B)) -> C
% collapsed.
% Rule
% [41]
% double_divide(inverse(double_divide(double_divide(inverse(double_divide(A,
% inverse(B))),
% inverse(C)),inverse(C))),inverse(B)) -> A
% collapsed.
% Current number of equations to process: 61
% Current number of ordered equations: 0
% Current number of rules: 40
% New rule produced :
% [57]
% inverse(double_divide(inverse(double_divide(A,inverse(B))),inverse(double_divide(
% double_divide(
% inverse(B),
% inverse(C)),
% inverse(A)))))
% -> C
% Current number of equations to process: 67
% Current number of ordered equations: 0
% Current number of rules: 41
% New rule produced :
% [58]
% inverse(double_divide(B,inverse(double_divide(double_divide(V_3,C),inverse(
% double_divide(V_3,
% inverse(A)))))))
% <-> double_divide(inverse(double_divide(A,inverse(B))),C)
% Current number of equations to process: 66
% Current number of ordered equations: 1
% Current number of rules: 42
% New rule produced :
% [59]
% double_divide(inverse(double_divide(A,inverse(B))),C) <->
% inverse(double_divide(B,inverse(double_divide(double_divide(V_3,C),inverse(
% double_divide(V_3,
% inverse(A)))))))
% Rule
% [2]
% double_divide(inverse(double_divide(double_divide(A,B),inverse(double_divide(A,
% inverse(C))))),B)
% -> C collapsed.
% Rule
% [3]
% double_divide(inverse(double_divide(A,inverse(double_divide(inverse(double_divide(
% double_divide(B,C),
% inverse(
% double_divide(B,
% inverse(A))))),
% inverse(V_3))))),C) -> V_3
% collapsed.
% Rule
% [26]
% double_divide(inverse(double_divide(double_divide(inverse(A),B),inverse(C))),B)
% -> inverse(double_divide(C,inverse(A))) collapsed.
% Rule
% [53]
% double_divide(inverse(double_divide(double_divide(double_divide(A,inverse(B)),C),
% inverse(double_divide(B,inverse(V_3))))),C) ->
% double_divide(A,inverse(V_3)) collapsed.
% Current number of equations to process: 70
% Current number of ordered equations: 0
% Current number of rules: 39
% New rule produced :
% [60]
% inverse(double_divide(double_divide(A,inverse(C)),inverse(double_divide(
% double_divide(b1,B),
% inverse(double_divide(b1,
% inverse(
% double_divide(A,B))))))))
% -> C
% Current number of equations to process: 69
% Current number of ordered equations: 0
% Current number of rules: 40
% New rule produced :
% [61]
% inverse(double_divide(double_divide(B,inverse(B)),inverse(A))) -> inverse(A)
% Current number of equations to process: 69
% Current number of ordered equations: 0
% Current number of rules: 41
% New rule produced :
% [62]
% inverse(double_divide(A,inverse(A))) <->
% inverse(inverse(inverse(double_divide(B,inverse(B)))))
% The conjecture has been reduced. 
% Conjecture is now:
% inverse(inverse(inverse(double_divide(b1,inverse(b1))))) = inverse(double_divide(b1,
% inverse(b1)))
% 
% Current number of equations to process: 80
% Current number of ordered equations: 1
% Current number of rules: 42
% New rule produced :
% [63]
% inverse(inverse(inverse(double_divide(B,inverse(B))))) <->
% inverse(double_divide(A,inverse(A)))
% Rule
% [9]
% double_divide(inverse(inverse(inverse(inverse(double_divide(A,inverse(A)))))),
% inverse(B)) -> B collapsed.
% Rule
% [12]
% double_divide(inverse(inverse(inverse(double_divide(A,inverse(A))))),
% inverse(B)) -> B collapsed.
% Rule
% [20]
% double_divide(inverse(inverse(inverse(inverse(inverse(double_divide(A,
% inverse(A))))))),
% inverse(B)) -> B collapsed.
% Rule
% [22]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(double_divide(A,
% inverse(A)))))))),
% inverse(B)) -> B collapsed.
% Rule
% [24]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% double_divide(A,
% inverse(A)))))))))),
% inverse(B)) -> B collapsed.
% Rule
% [37]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% double_divide(A,
% inverse(A))))))))),
% inverse(B)) -> B collapsed.
% Rule
% [51]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% inverse(
% double_divide(A,
% inverse(A))))))))))),
% inverse(B)) -> B collapsed.
% Rule
% [54]
% double_divide(inverse(inverse(inverse(inverse(inverse(inverse(inverse(
% inverse(
% inverse(
% inverse(
% double_divide(A,
% inverse(A)))))))))))),
% inverse(B)) -> B collapsed.
% The conjecture has been reduced. 
% Conjecture is now:
% Trivial
% 
% Current number of equations to process: 80
% Current number of ordered equations: 0
% Current number of rules: 35
% The current conjecture is true and the solution is the identity
% % SZS output start Refutation
% 
% The following 10 rules have been used:
% [1] 
% multiply(A,B) -> inverse(double_divide(B,A)); trace = in the starting set
% [2] double_divide(inverse(double_divide(double_divide(A,B),inverse(double_divide(A,
% inverse(C))))),B)
% -> C; trace = in the starting set
% [3] double_divide(inverse(double_divide(A,inverse(double_divide(inverse(
% double_divide(
% double_divide(B,C),
% inverse(
% double_divide(B,
% inverse(A))))),
% inverse(V_3))))),C) -> V_3; trace = Self cp of 2
% [5] double_divide(inverse(double_divide(A,inverse(A))),inverse(B)) -> B; trace = Cp of 3 and 2
% [6] double_divide(inverse(inverse(double_divide(A,inverse(A)))),inverse(B))
% -> B; trace = Self cp of 5
% [7] double_divide(inverse(double_divide(A,inverse(B))),inverse(A)) -> B; trace = Cp of 5 and 2
% [12] double_divide(inverse(inverse(inverse(double_divide(A,inverse(A))))),
% inverse(B)) -> B; trace = Cp of 6 and 5
% [29] inverse(double_divide(A,inverse(double_divide(B,inverse(A))))) -> B; trace = Self cp of 7
% [62] inverse(double_divide(A,inverse(A))) <->
% inverse(inverse(inverse(double_divide(B,inverse(B))))); trace = Cp of 29 and 12
% [63] inverse(inverse(inverse(double_divide(B,inverse(B))))) <->
% inverse(double_divide(A,inverse(A))); trace = Cp of 29 and 12
% % SZS output end Refutation
% All conjectures have been proven
% 
% Execution time: 0.210000 sec
% res : bool = true
% time is now off
% 
% status : string = "unsatisfiable"
% % SZS status Unsatisfiable
% CiME interrupted
% 
% EOF
%------------------------------------------------------------------------------