%------------------------------------------------------------------------------
% File : Z3---4.15.1
% Problem : SWC011+1 : TPTP v9.0.0. Released v2.4.0.
% Transfm : none
% Format : tptp
% Command : run_E %s %d THM
% Computer : n002.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 : Sat Jun 21 05:29:55 AM UTC 2025
% Result : Theorem 1.22s 1.41s
% Output : Proof 1.22s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13 % Problem : SWC011+1 : TPTP v9.0.0. Released v2.4.0.
% 0.07/0.13 % Command : run_E %s %d THM
% 0.14/0.35 % Computer : n002.cluster.edu
% 0.14/0.35 % Model : x86_64 x86_64
% 0.14/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35 % Memory : 8042.1875MB
% 0.14/0.35 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35 % CPULimit : 300
% 0.14/0.35 % WCLimit : 300
% 0.14/0.35 % DateTime : Fri Jun 20 08:01:31 EDT 2025
% 0.14/0.35 % CPUTime :
% 1.22/1.41 % SZS status Theorem
% 1.22/1.41 % SZS output start Proof
% 1.22/1.41 tff(tptp_fun_V_46_type, type, (
% 1.22/1.41 tptp_fun_V_46: $i)).
% 1.22/1.41 tff(app_type, type, (
% 1.22/1.41 app: ( $i * $i ) > $i)).
% 1.22/1.41 tff(cons_type, type, (
% 1.22/1.41 cons: ( $i * $i ) > $i)).
% 1.22/1.41 tff(nil_type, type, (
% 1.22/1.41 nil: $i)).
% 1.22/1.41 tff(tptp_fun_X2_47_type, type, (
% 1.22/1.41 tptp_fun_X2_47: $i)).
% 1.22/1.41 tff(tptp_fun_X3_48_type, type, (
% 1.22/1.41 tptp_fun_X3_48: $i)).
% 1.22/1.41 tff(tptp_fun_U_45_type, type, (
% 1.22/1.41 tptp_fun_U_45: $i)).
% 1.22/1.41 tff(ssList_type, type, (
% 1.22/1.41 ssList: $i > $o)).
% 1.22/1.41 tff(ssItem_type, type, (
% 1.22/1.41 ssItem: $i > $o)).
% 1.22/1.41 tff(tptp_fun_X4_49_type, type, (
% 1.22/1.41 tptp_fun_X4_49: $i)).
% 1.22/1.41 tff(neq_type, type, (
% 1.22/1.41 neq: ( $i * $i ) > $o)).
% 1.22/1.41 tff(1,plain,
% 1.22/1.41 ((ssList(U!45) & (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))) <=> (ssList(U!45) & ssList(V!46) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))),
% 1.22/1.41 inference(rewrite,[status(thm)],[])).
% 1.22/1.41 tff(2,plain,
% 1.22/1.41 ((ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & (ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))) <=> (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))),
% 1.22/1.41 inference(rewrite,[status(thm)],[])).
% 1.22/1.41 tff(3,plain,
% 1.22/1.41 ((ssItem(X2!47) & (ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))) <=> (ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))),
% 1.22/1.41 inference(rewrite,[status(thm)],[])).
% 1.22/1.41 tff(4,plain,
% 1.22/1.41 ((ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & (ssItem(X2!47) & (ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46))))))) <=> (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & (ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46))))))),
% 1.22/1.41 inference(monotonicity,[status(thm)],[3])).
% 1.22/1.41 tff(5,plain,
% 1.22/1.41 ((ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & (ssItem(X2!47) & (ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46))))))) <=> (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))),
% 1.22/1.41 inference(transitivity,[status(thm)],[4, 2])).
% 1.22/1.41 tff(6,plain,
% 1.22/1.41 ((ssList(U!45) & (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & (ssItem(X2!47) & (ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))))) <=> (ssList(U!45) & (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46))))))),
% 1.22/1.41 inference(monotonicity,[status(thm)],[5])).
% 1.22/1.41 tff(7,plain,
% 1.22/1.41 ((ssList(U!45) & (ssList(V!46) & ssList(U!45) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & (ssItem(X2!47) & (ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))))) <=> (ssList(U!45) & ssList(V!46) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))))),
% 1.22/1.41 inference(transitivity,[status(thm)],[6, 1])).
% 1.22/1.41 tff(8,plain,
% 1.22/1.41 ((~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V)))))))) <=> (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V))))))))),
% 1.22/1.42 inference(rewrite,[status(thm)],[])).
% 1.22/1.42 tff(9,plain,
% 1.22/1.42 ((~![U: $i] : (ssList(U) => ![V: $i] : (ssList(V) => ![W: $i] : (ssList(W) => ![X: $i] : (ssList(X) => (((~(V = X)) | (~(U = W))) | ((((~neq(V, nil)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : ((ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V)) & (app(Z, X1) = U))))) | ![X2: $i] : (ssItem(X2) => ![X3: $i] : (ssList(X3) => ![X4: $i] : (ssList(X4) => ((~(app(app(X3, cons(X2, nil)), X4) = X)) | (~(app(X3, X4) = W))))))) & ((~neq(V, nil)) | neq(X, nil))))))))) <=> (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V))))))))),
% 1.22/1.42 inference(rewrite,[status(thm)],[])).
% 1.22/1.42 tff(10,axiom,(~![U: $i] : (ssList(U) => ![V: $i] : (ssList(V) => ![W: $i] : (ssList(W) => ![X: $i] : (ssList(X) => (((~(V = X)) | (~(U = W))) | ((((~neq(V, nil)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : ((ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V)) & (app(Z, X1) = U))))) | ![X2: $i] : (ssItem(X2) => ![X3: $i] : (ssList(X3) => ![X4: $i] : (ssList(X4) => ((~(app(app(X3, cons(X2, nil)), X4) = X)) | (~(app(X3, X4) = W))))))) & ((~neq(V, nil)) | neq(X, nil))))))))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','co1')).
% 1.22/1.42 tff(11,plain,
% 1.22/1.42 (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V)))))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[10, 9])).
% 1.22/1.42 tff(12,plain,
% 1.22/1.42 (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V)))))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[11, 8])).
% 1.22/1.42 tff(13,plain,
% 1.22/1.42 (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V)))))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[12, 8])).
% 1.22/1.42 tff(14,plain,
% 1.22/1.42 (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | (~ssList(U)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssList(Z) & ?[X1: $i] : (ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V) & (app(Z, X1) = U)))) | (~neq(V, nil)) | ![X2: $i] : ((~ssItem(X2)) | ![X3: $i] : ((~ssList(X3)) | ![X4: $i] : ((~ssList(X4)) | (~(app(X3, X4) = U)) | (~(app(app(X3, cons(X2, nil)), X4) = V)))))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[13, 8])).
% 1.22/1.42 tff(15,plain,
% 1.22/1.42 (ssList(U!45) & ssList(V!46) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) & neq(V!46, nil) & ssItem(X2!47) & ssList(X3!48) & (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[14, 7])).
% 1.22/1.42 tff(16,plain,
% 1.22/1.42 (ssItem(X2!47)),
% 1.22/1.42 inference(and_elim,[status(thm)],[15])).
% 1.22/1.42 tff(17,plain,
% 1.22/1.42 (^[Y: $i] : refl(((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))) <=> ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))))),
% 1.22/1.42 inference(bind,[status(th)],[])).
% 1.22/1.42 tff(18,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(quant_intro,[status(thm)],[17])).
% 1.22/1.42 tff(19,plain,
% 1.22/1.42 (^[Y: $i] : rewrite(((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))) <=> ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))))),
% 1.22/1.42 inference(bind,[status(th)],[])).
% 1.22/1.42 tff(20,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(quant_intro,[status(thm)],[19])).
% 1.22/1.42 tff(21,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(transitivity,[status(thm)],[20, 18])).
% 1.22/1.42 tff(22,plain,
% 1.22/1.42 (^[Y: $i] : rewrite(((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) <=> ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46))))))),
% 1.22/1.42 inference(bind,[status(th)],[])).
% 1.22/1.42 tff(23,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(quant_intro,[status(thm)],[22])).
% 1.22/1.42 tff(24,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : (~(ssList(X1) & (app(app(Z, cons(Y, nil)), X1) = V!46) & (app(Z, X1) = U!45)))))),
% 1.22/1.42 inference(and_elim,[status(thm)],[15])).
% 1.22/1.42 tff(25,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[24, 23])).
% 1.22/1.42 tff(26,plain,
% 1.22/1.42 (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[25, 21])).
% 1.22/1.42 tff(27,plain,
% 1.22/1.42 (((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))) | ((~ssItem(X2!47)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46)))))) <=> ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))) | (~ssItem(X2!47)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(rewrite,[status(thm)],[])).
% 1.22/1.42 tff(28,plain,
% 1.22/1.42 ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))) | ((~ssItem(X2!47)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46)))))),
% 1.22/1.42 inference(quant_inst,[status(thm)],[])).
% 1.22/1.42 tff(29,plain,
% 1.22/1.42 ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(Y, nil)), X1) = V!46)))))) | (~ssItem(X2!47)) | ![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46))))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[28, 27])).
% 1.22/1.42 tff(30,plain,
% 1.22/1.42 (![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46))))),
% 1.22/1.42 inference(unit_resolution,[status(thm)],[29, 26, 16])).
% 1.22/1.42 tff(31,plain,
% 1.22/1.42 (ssList(X3!48)),
% 1.22/1.42 inference(and_elim,[status(thm)],[15])).
% 1.22/1.42 tff(32,plain,
% 1.22/1.42 (((~![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46))))) | ((~ssList(X3!48)) | ![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46))))) <=> ((~![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46))))) | (~ssList(X3!48)) | ![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46))))),
% 1.22/1.42 inference(rewrite,[status(thm)],[])).
% 1.22/1.42 tff(33,plain,
% 1.22/1.42 ((~![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46))))) | ((~ssList(X3!48)) | ![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46))))),
% 1.22/1.42 inference(quant_inst,[status(thm)],[])).
% 1.22/1.42 tff(34,plain,
% 1.22/1.42 ((~![Z: $i] : ((~ssList(Z)) | ![X1: $i] : ((~ssList(X1)) | (~(app(Z, X1) = U!45)) | (~(app(app(Z, cons(X2!47, nil)), X1) = V!46))))) | (~ssList(X3!48)) | ![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46)))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[33, 32])).
% 1.22/1.42 tff(35,plain,
% 1.22/1.42 (![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46)))),
% 1.22/1.42 inference(unit_resolution,[status(thm)],[34, 31, 30])).
% 1.22/1.42 tff(36,plain,
% 1.22/1.42 (~((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))),
% 1.22/1.42 inference(and_elim,[status(thm)],[15])).
% 1.22/1.42 tff(37,plain,
% 1.22/1.42 (app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46),
% 1.22/1.42 inference(or_elim,[status(thm)],[36])).
% 1.22/1.42 tff(38,plain,
% 1.22/1.42 (app(X3!48, X4!49) = U!45),
% 1.22/1.42 inference(or_elim,[status(thm)],[36])).
% 1.22/1.42 tff(39,plain,
% 1.22/1.42 (ssList(X4!49)),
% 1.22/1.42 inference(or_elim,[status(thm)],[36])).
% 1.22/1.42 tff(40,plain,
% 1.22/1.42 (((~![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46)))) | ((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))) <=> ((~![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46)))) | (~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))),
% 1.22/1.42 inference(rewrite,[status(thm)],[])).
% 1.22/1.42 tff(41,plain,
% 1.22/1.42 ((~![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46)))) | ((~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46)))),
% 1.22/1.42 inference(quant_inst,[status(thm)],[])).
% 1.22/1.42 tff(42,plain,
% 1.22/1.42 ((~![X1: $i] : ((~ssList(X1)) | (~(app(X3!48, X1) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X1) = V!46)))) | (~ssList(X4!49)) | (~(app(X3!48, X4!49) = U!45)) | (~(app(app(X3!48, cons(X2!47, nil)), X4!49) = V!46))),
% 1.22/1.42 inference(modus_ponens,[status(thm)],[41, 40])).
% 1.22/1.42 tff(43,plain,
% 1.22/1.42 ($false),
% 1.22/1.42 inference(unit_resolution,[status(thm)],[42, 39, 38, 37, 35])).
% 1.22/1.42 % SZS output end Proof
% 1.22/1.43 % E exiting
%------------------------------------------------------------------------------