TSTP Solution File: GRP118-1 by Toma---0.4

View Problem - Process Solution

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% File     : Toma---0.4
% Problem  : GRP118-1 : TPTP v8.1.2. Released v1.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : toma --casc %s

% Computer : n013.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 : Thu Aug 31 01:13:52 EDT 2023

% Result   : Unsatisfiable 4.64s 4.97s
% Output   : CNFRefutation 4.64s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
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%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem    : GRP118-1 : TPTP v8.1.2. Released v1.2.0.
% 0.06/0.13  % Command    : toma --casc %s
% 0.12/0.34  % Computer : n013.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit   : 300
% 0.12/0.34  % WCLimit    : 300
% 0.12/0.34  % DateTime   : Mon Aug 28 20:15:46 EDT 2023
% 0.12/0.34  % CPUTime    : 
% 4.64/4.97  % SZS status Unsatisfiable
% 4.64/4.97  % SZS output start Proof
% 4.64/4.97  original problem:
% 4.64/4.97  axioms:
% 4.64/4.97  multiply(X, multiply(multiply(X, multiply(multiply(X, Y), Z)), multiply(identity(), multiply(Z, Z)))) = Y
% 4.64/4.97  goal:
% 4.64/4.97  multiply(multiply(a(), b()), c()) != multiply(a(), multiply(b(), c()))
% 4.64/4.97  To show the unsatisfiability of the original goal,
% 4.64/4.97  it suffices to show that multiply(multiply(a(), b()), c()) = multiply(a(), multiply(b(), c())) (skolemized goal) is valid under the axioms.
% 4.64/4.97  Here is an equational proof:
% 4.64/4.97  0: multiply(X0, multiply(multiply(X0, multiply(multiply(X0, X1), X2)), multiply(identity(), multiply(X2, X2)))) = X1.
% 4.64/4.97  Proof: Axiom.
% 4.64/4.97  
% 4.64/4.97  2: multiply(multiply(X3, X4), X5) = multiply(X3, multiply(X4, multiply(identity(), multiply(multiply(identity(), multiply(X5, X5)), multiply(identity(), multiply(X5, X5)))))).
% 4.64/4.97  Proof: A critical pair between equations 0 and 0.
% 4.64/4.97  
% 4.64/4.97  3: multiply(multiply(X3, multiply(multiply(X3, X4), X5)), multiply(identity(), multiply(X5, X5))) = multiply(X3, multiply(multiply(X3, multiply(X4, X2)), multiply(identity(), multiply(X2, X2)))).
% 4.64/4.97  Proof: A critical pair between equations 0 and 0.
% 4.64/4.97  
% 4.64/4.97  6: multiply(X0, multiply(X0, multiply(multiply(X0, multiply(X1, X2)), multiply(identity(), multiply(X2, X2))))) = X1.
% 4.64/4.97  Proof: Rewrite equation 0,
% 4.64/4.97                 lhs with equations [3]
% 4.64/4.97                 rhs with equations [].
% 4.64/4.97  
% 4.64/4.97  7: multiply(multiply(X3, identity()), X8) = multiply(X3, X8).
% 4.64/4.97  Proof: A critical pair between equations 2 and 6.
% 4.64/4.97  
% 4.64/4.97  8: X7 = multiply(X6, multiply(multiply(X6, multiply(multiply(X6, X7), X9)), multiply(identity(), multiply(X9, X9)))).
% 4.64/4.97  Proof: A critical pair between equations 6 and 3.
% 4.64/4.97  
% 4.64/4.97  9: multiply(multiply(X3, X4), multiply(identity(), X7)) = multiply(X3, multiply(X4, multiply(identity(), multiply(identity(), multiply(multiply(identity(), multiply(X7, X9)), multiply(identity(), multiply(X9, X9))))))).
% 4.64/4.97  Proof: A critical pair between equations 2 and 3.
% 4.64/4.97  
% 4.64/4.97  14: X1 = multiply(X0, multiply(X0, multiply(multiply(X0, multiply(X1, multiply(identity(), multiply(multiply(identity(), X7), multiply(identity(), X7))))), multiply(identity(), multiply(identity(), multiply(multiply(identity(), multiply(X7, X9)), multiply(identity(), multiply(X9, X9)))))))).
% 4.64/4.97  Proof: A critical pair between equations 6 and 3.
% 4.64/4.97  
% 4.64/4.97  18: multiply(X6, multiply(multiply(X7, multiply(identity(), multiply(multiply(identity(), multiply(X8, X8)), multiply(identity(), multiply(X8, X8))))), multiply(identity(), multiply(multiply(identity(), multiply(X5, X5)), multiply(identity(), multiply(X5, X5)))))) = multiply(multiply(multiply(X6, X7), X8), X5).
% 4.64/4.97  Proof: A critical pair between equations 2 and 2.
% 4.64/4.97  
% 4.64/4.97  19: X1 = multiply(X0, multiply(X0, multiply(X0, multiply(multiply(X1, multiply(identity(), multiply(multiply(identity(), X7), multiply(identity(), X7)))), multiply(identity(), multiply(multiply(identity(), multiply(X7, X7)), multiply(identity(), multiply(X7, X7)))))))).
% 4.64/4.97  Proof: Rewrite equation 14,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [6,2].
% 4.64/4.97  
% 4.64/4.97  24: multiply(multiply(X3, X4), multiply(identity(), X7)) = multiply(X3, multiply(X4, X7)).
% 4.64/4.97  Proof: Rewrite equation 9,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [6].
% 4.64/4.97  
% 4.64/4.97  25: multiply(multiply(X3, X4), X5) = multiply(X3, multiply(X4, multiply(identity(), multiply(identity(), multiply(multiply(X5, X5), multiply(X5, X5)))))).
% 4.64/4.97  Proof: Rewrite equation 2,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [24].
% 4.64/4.97  
% 4.64/4.97  28: X10 = multiply(X9, multiply(X9, multiply(multiply(multiply(X9, X10), X11), multiply(X11, X11)))).
% 4.64/4.97  Proof: A critical pair between equations 19 and 18.
% 4.64/4.97  
% 4.64/4.97  29: identity() = multiply(X10, multiply(multiply(X10, multiply(X10, X11)), multiply(identity(), multiply(X11, X11)))).
% 4.64/4.97  Proof: A critical pair between equations 8 and 7.
% 4.64/4.97  
% 4.64/4.97  30: X1 = multiply(X8, multiply(X8, multiply(X8, multiply(multiply(X1, X2), multiply(X2, X2))))).
% 4.64/4.97  Proof: A critical pair between equations 6 and 24.
% 4.64/4.97  
% 4.64/4.97  35: multiply(X9, identity()) = multiply(X0, multiply(X0, multiply(multiply(X0, multiply(X9, X10)), multiply(identity(), multiply(X10, X10))))).
% 4.64/4.97  Proof: A critical pair between equations 6 and 7.
% 4.64/4.97  
% 4.64/4.97  39: multiply(X9, identity()) = X9.
% 4.64/4.97  Proof: Rewrite equation 35,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [24,30].
% 4.64/4.97  
% 4.64/4.97  40: identity() = multiply(X10, multiply(X10, multiply(multiply(X10, X11), multiply(X11, X11)))).
% 4.64/4.97  Proof: Rewrite equation 29,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [24].
% 4.64/4.97  
% 4.64/4.97  54: multiply(X6, multiply(X7, multiply(identity(), multiply(multiply(identity(), multiply(multiply(X8, X8), multiply(X8, X8))), multiply(multiply(X5, X5), multiply(X5, X5)))))) = multiply(multiply(multiply(X6, X7), X8), X5).
% 4.64/4.97  Proof: Rewrite equation 18,
% 4.64/4.97                 lhs with equations [24,24,24,24]
% 4.64/4.97                 rhs with equations [].
% 4.64/4.97  
% 4.64/4.97  55: X1 = multiply(multiply(X1, multiply(X11, X11)), X11).
% 4.64/4.97  Proof: A critical pair between equations 30 and 30.
% 4.64/4.97  
% 4.64/4.97  60: multiply(multiply(multiply(X6, identity()), X8), multiply(X8, X8)) = multiply(X6, identity()).
% 4.64/4.97  Proof: A critical pair between equations 54 and 40.
% 4.64/4.97  
% 4.64/4.97  66: X10 = multiply(X9, multiply(X9, multiply(multiply(multiply(X9, X10), identity()), identity()))).
% 4.64/4.97  Proof: A critical pair between equations 28 and 39.
% 4.64/4.97  
% 4.64/4.97  67: X10 = multiply(X9, multiply(X9, multiply(X9, X10))).
% 4.64/4.97  Proof: Rewrite equation 66,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [39,39].
% 4.64/4.97  
% 4.64/4.97  69: multiply(multiply(X6, X8), multiply(X8, X8)) = X6.
% 4.64/4.97  Proof: Rewrite equation 60,
% 4.64/4.97                 lhs with equations [39]
% 4.64/4.97                 rhs with equations [39].
% 4.64/4.97  
% 4.64/4.97  71: X1 = multiply(X1, multiply(X11, multiply(X11, multiply(identity(), X11)))).
% 4.64/4.97  Proof: Rewrite equation 55,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [25,69,24].
% 4.64/4.97  
% 4.64/4.97  76: multiply(multiply(X3, X4), X5) = multiply(X3, multiply(X4, multiply(identity(), multiply(identity(), X5)))).
% 4.64/4.97  Proof: Rewrite equation 25,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [69].
% 4.64/4.97  
% 4.64/4.97  80: multiply(identity(), X13) = X13.
% 4.64/4.97  Proof: A critical pair between equations 67 and 71.
% 4.64/4.97  
% 4.64/4.97  93: multiply(multiply(X3, X4), X5) = multiply(X3, multiply(X4, X5)).
% 4.64/4.97  Proof: Rewrite equation 76,
% 4.64/4.97                 lhs with equations []
% 4.64/4.97                 rhs with equations [80,80].
% 4.64/4.97  
% 4.64/4.97  95: multiply(multiply(a(), b()), c()) = multiply(a(), multiply(b(), c())).
% 4.64/4.97  Proof: Rewrite lhs with equations [93]
% 4.64/4.97                 rhs with equations [].
% 4.64/4.97  
% 4.64/4.97  % SZS output end Proof
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