TSTP Solution File: SYN548+1 by SuperZenon---0.0.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SuperZenon---0.0.1
% Problem  : SYN548+1 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_super_zenon -p0 -itptp -om -max-time %d %s

% Computer : n004.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 : Thu Jul 21 12:45:06 EDT 2022

% Result   : Theorem 27.03s 27.23s
% Output   : Proof 27.03s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SYN548+1 : TPTP v8.1.0. Released v2.2.0.
% 0.00/0.12  % Command  : run_super_zenon -p0 -itptp -om -max-time %d %s
% 0.12/0.33  % Computer : n004.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jul 11 22:54:07 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 27.03/27.23  % SZS status Theorem
% 27.03/27.23  (* PROOF-FOUND *)
% 27.03/27.23  (* BEGIN-PROOF *)
% 27.03/27.23  % SZS output start Proof
% 27.03/27.23  1. (-. (reachable (initial_world) (initial_world)))   ### Refl(reachable)
% 27.03/27.23  2. (reachable T_0 T_1) (-. (reachable T_0 T_1))   ### Axiom
% 27.03/27.23  3. (-. (p T_1)) (p T_1)   ### Axiom
% 27.03/27.23  4. ((reachable T_0 T_1) => (p T_1)) (-. (p T_1)) (reachable T_0 T_1)   ### Imply 2 3
% 27.03/27.23  5. (All W, ((reachable T_0 W) => (p W))) (reachable T_0 T_1) (-. (p T_1))   ### All 4
% 27.03/27.23  6. (reachable T_0 T_1) (-. (reachable T_0 T_1))   ### Axiom
% 27.03/27.23  7. (T_2 != T_2)   ### Refl(=)
% 27.03/27.23  8. (-. (reachable T_0 T_2)) (reachable T_1 T_2) (reachable T_0 T_1)   ### Trans 6 7
% 27.03/27.23  9. (-. (q T_2)) (q T_2)   ### Axiom
% 27.03/27.23  10. ((reachable T_0 T_2) => (q T_2)) (-. (q T_2)) (reachable T_0 T_1) (reachable T_1 T_2)   ### Imply 8 9
% 27.03/27.23  11. (All W, ((reachable T_0 W) => (q W))) (reachable T_1 T_2) (reachable T_0 T_1) (-. (q T_2))   ### All 10
% 27.03/27.23  12. ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W)))) (-. (q T_2)) (reachable T_1 T_2) (-. (p T_1)) (reachable T_0 T_1)   ### Or 5 11
% 27.03/27.23  13. (-. ((reachable T_1 T_2) => (q T_2))) (reachable T_0 T_1) (-. (p T_1)) ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W))))   ### NotImply 12
% 27.03/27.23  14. (-. (All V, ((reachable T_1 V) => (q V)))) ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W)))) (-. (p T_1)) (reachable T_0 T_1)   ### NotAllEx 13
% 27.03/27.23  15. (-. ((reachable T_0 T_1) => ((p T_1) \/ (All V, ((reachable T_1 V) => (q V)))))) ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W))))   ### ConjTree 14
% 27.03/27.23  16. (-. (All Z, ((reachable T_0 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))) ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W))))   ### NotAllEx 15
% 27.03/27.23  17. (reachable (initial_world) T_0) (-. (reachable (initial_world) T_0))   ### Axiom
% 27.03/27.23  18. (T_3 != T_3)   ### Refl(=)
% 27.03/27.23  19. (-. (reachable (initial_world) T_3)) (reachable T_0 T_3) (reachable (initial_world) T_0)   ### Trans 17 18
% 27.03/27.23  20. (reachable T_4 T_5) (-. (reachable T_4 T_5))   ### Axiom
% 27.03/27.23  21. (-. (p T_5)) (p T_5)   ### Axiom
% 27.03/27.23  22. ((reachable T_4 T_5) => (p T_5)) (-. (p T_5)) (reachable T_4 T_5)   ### Imply 20 21
% 27.03/27.23  23. (All W, ((reachable T_4 W) => (p W))) (reachable T_4 T_5) (-. (p T_5))   ### All 22
% 27.03/27.23  24. (reachable T_4 T_5) (-. (reachable T_4 T_5))   ### Axiom
% 27.03/27.23  25. (T_6 != T_6)   ### Refl(=)
% 27.03/27.23  26. (-. (reachable T_4 T_6)) (reachable T_5 T_6) (reachable T_4 T_5)   ### Trans 24 25
% 27.03/27.23  27. (-. (q T_6)) (q T_6)   ### Axiom
% 27.03/27.23  28. ((reachable T_4 T_6) => (q T_6)) (-. (q T_6)) (reachable T_4 T_5) (reachable T_5 T_6)   ### Imply 26 27
% 27.03/27.23  29. (All W, ((reachable T_4 W) => (q W))) (reachable T_5 T_6) (reachable T_4 T_5) (-. (q T_6))   ### All 28
% 27.03/27.23  30. ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W)))) (-. (q T_6)) (reachable T_5 T_6) (-. (p T_5)) (reachable T_4 T_5)   ### Or 23 29
% 27.03/27.23  31. (-. ((reachable T_5 T_6) => (q T_6))) (reachable T_4 T_5) (-. (p T_5)) ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W))))   ### NotImply 30
% 27.03/27.23  32. (-. (All V, ((reachable T_5 V) => (q V)))) ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W)))) (-. (p T_5)) (reachable T_4 T_5)   ### NotAllEx 31
% 27.03/27.23  33. (-. ((reachable T_4 T_5) => ((p T_5) \/ (All V, ((reachable T_5 V) => (q V)))))) ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W))))   ### ConjTree 32
% 27.03/27.23  34. (-. (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))) ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W))))   ### NotAllEx 33
% 27.03/27.23  35. (T_4 != T_4)   ### Refl(=)
% 27.03/27.23  36. (-. (reachable (initial_world) T_4)) (reachable T_3 T_4) (reachable (initial_world) T_0) (reachable T_0 T_3)   ### Trans 19 35
% 27.03/27.23  37. (T_7 != T_7)   ### Refl(=)
% 27.03/27.23  38. (-. (reachable (initial_world) T_7)) (reachable T_4 T_7) (reachable T_0 T_3) (reachable (initial_world) T_0) (reachable T_3 T_4)   ### Trans 36 37
% 27.03/27.23  39. (reachable T_8 T_9) (-. (reachable T_8 T_9))   ### Axiom
% 27.03/27.23  40. (-. (p T_9)) (p T_9)   ### Axiom
% 27.03/27.23  41. ((reachable T_8 T_9) => (p T_9)) (-. (p T_9)) (reachable T_8 T_9)   ### Imply 39 40
% 27.03/27.23  42. (All W, ((reachable T_8 W) => (p W))) (reachable T_8 T_9) (-. (p T_9))   ### All 41
% 27.03/27.23  43. (reachable T_8 T_9) (-. (reachable T_8 T_9))   ### Axiom
% 27.03/27.23  44. (T_10 != T_10)   ### Refl(=)
% 27.03/27.23  45. (-. (reachable T_8 T_10)) (reachable T_9 T_10) (reachable T_8 T_9)   ### Trans 43 44
% 27.03/27.23  46. (-. (q T_10)) (q T_10)   ### Axiom
% 27.03/27.23  47. ((reachable T_8 T_10) => (q T_10)) (-. (q T_10)) (reachable T_8 T_9) (reachable T_9 T_10)   ### Imply 45 46
% 27.03/27.23  48. (All W, ((reachable T_8 W) => (q W))) (reachable T_9 T_10) (reachable T_8 T_9) (-. (q T_10))   ### All 47
% 27.03/27.23  49. ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W)))) (-. (q T_10)) (reachable T_9 T_10) (-. (p T_9)) (reachable T_8 T_9)   ### Or 42 48
% 27.03/27.23  50. (-. ((reachable T_9 T_10) => (q T_10))) (reachable T_8 T_9) (-. (p T_9)) ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W))))   ### NotImply 49
% 27.03/27.23  51. (-. (All V, ((reachable T_9 V) => (q V)))) ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W)))) (-. (p T_9)) (reachable T_8 T_9)   ### NotAllEx 50
% 27.03/27.23  52. (-. ((reachable T_8 T_9) => ((p T_9) \/ (All V, ((reachable T_9 V) => (q V)))))) ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W))))   ### ConjTree 51
% 27.03/27.23  53. (-. (All Z, ((reachable T_8 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))) ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W))))   ### NotAllEx 52
% 27.03/27.23  54. (reachable T_4 T_7) (-. (reachable T_4 T_7))   ### Axiom
% 27.03/27.23  55. (-. (p T_7)) (p T_7)   ### Axiom
% 27.03/27.23  56. (reachable T_7 T_8) (-. (reachable T_7 T_8))   ### Axiom
% 27.03/27.23  57. (T_11 != T_11)   ### Refl(=)
% 27.03/27.23  58. (-. (reachable T_7 T_11)) (reachable T_8 T_11) (reachable T_7 T_8)   ### Trans 56 57
% 27.03/27.23  59. (-. (q T_11)) (q T_11)   ### Axiom
% 27.03/27.23  60. ((reachable T_7 T_11) => (q T_11)) (-. (q T_11)) (reachable T_7 T_8) (reachable T_8 T_11)   ### Imply 58 59
% 27.03/27.23  61. (All V, ((reachable T_7 V) => (q V))) (reachable T_8 T_11) (reachable T_7 T_8) (-. (q T_11))   ### All 60
% 27.03/27.23  62. ((reachable T_4 T_7) => ((p T_7) \/ (All V, ((reachable T_7 V) => (q V))))) (-. (q T_11)) (reachable T_7 T_8) (reachable T_8 T_11) (-. (p T_7)) (reachable T_4 T_7)   ### DisjTree 54 55 61
% 27.03/27.23  63. (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_4 T_7) (-. (p T_7)) (reachable T_8 T_11) (reachable T_7 T_8) (-. (q T_11))   ### All 62
% 27.03/27.23  64. (-. ((reachable T_8 T_11) => (q T_11))) (reachable T_7 T_8) (-. (p T_7)) (reachable T_4 T_7) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))   ### NotImply 63
% 27.03/27.23  65. (-. (All W, ((reachable T_8 W) => (q W)))) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_4 T_7) (-. (p T_7)) (reachable T_7 T_8)   ### NotAllEx 64
% 27.03/27.23  66. (-. ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W))))) (reachable T_7 T_8) (-. (p T_7)) (reachable T_4 T_7) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))   ### NotOr 65
% 27.03/27.23  67. (-. ((All Z, ((reachable T_8 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W)))))) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_4 T_7) (-. (p T_7)) (reachable T_7 T_8)   ### NotEquiv 53 66
% 27.03/27.23  68. (-. ((reachable T_7 T_8) => ((All Z, ((reachable T_8 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable T_8 W) => (p W))) \/ (All W, ((reachable T_8 W) => (q W))))))) (-. (p T_7)) (reachable T_4 T_7) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))   ### NotImply 67
% 27.03/27.23  69. (-. (All Y, ((reachable T_7 Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_4 T_7) (-. (p T_7))   ### NotAllEx 68
% 27.03/27.23  70. (-. ((reachable (initial_world) T_7) /\ (All Y, ((reachable T_7 Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))) (-. (p T_7)) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_3 T_4) (reachable (initial_world) T_0) (reachable T_0 T_3) (reachable T_4 T_7)   ### NotAnd 38 69
% 27.03/27.25  71. (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable T_4 T_7) (reachable T_0 T_3) (reachable (initial_world) T_0) (reachable T_3 T_4) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (-. (p T_7))   ### NotExists 70
% 27.03/27.25  72. (-. ((reachable T_4 T_7) => (p T_7))) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_3 T_4) (reachable (initial_world) T_0) (reachable T_0 T_3) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotImply 71
% 27.03/27.25  73. (-. (All W, ((reachable T_4 W) => (p W)))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable T_0 T_3) (reachable (initial_world) T_0) (reachable T_3 T_4) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V))))))   ### NotAllEx 72
% 27.03/27.25  74. (-. ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W))))) (All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) (reachable T_3 T_4) (reachable (initial_world) T_0) (reachable T_0 T_3) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotOr 73
% 27.03/27.25  75. (-. ((All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W)))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable T_0 T_3) (reachable (initial_world) T_0) (reachable T_3 T_4)   ### NotEquiv 34 74
% 27.03/27.25  76. (-. ((reachable T_3 T_4) => ((All Z, ((reachable T_4 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable T_4 W) => (p W))) \/ (All W, ((reachable T_4 W) => (q W))))))) (reachable (initial_world) T_0) (reachable T_0 T_3) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotImply 75
% 27.03/27.25  77. (-. (All Y, ((reachable T_3 Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable T_0 T_3) (reachable (initial_world) T_0)   ### NotAllEx 76
% 27.03/27.25  78. (-. ((reachable (initial_world) T_3) /\ (All Y, ((reachable T_3 Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable (initial_world) T_0) (reachable T_0 T_3)   ### NotAnd 19 77
% 27.03/27.25  79. (reachable T_0 T_3) (reachable (initial_world) T_0) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotExists 78
% 27.03/27.25  80. (-. ((reachable T_0 T_3) => (q T_3))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable (initial_world) T_0)   ### NotImply 79
% 27.03/27.25  81. (-. (All W, ((reachable T_0 W) => (q W)))) (reachable (initial_world) T_0) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotAllEx 80
% 27.03/27.25  82. (-. ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))))) (reachable (initial_world) T_0)   ### NotOr 81
% 27.03/27.25  83. (-. ((All Z, ((reachable T_0 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W)))))) (reachable (initial_world) T_0) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotEquiv 16 82
% 27.03/27.25  84. (-. ((reachable (initial_world) T_0) => ((All Z, ((reachable T_0 Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable T_0 W) => (p W))) \/ (All W, ((reachable T_0 W) => (q W))))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotImply 83
% 27.03/27.25  85. (-. (All Y, ((reachable (initial_world) Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W)))))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotAllEx 84
% 27.03/27.25  86. (-. ((reachable (initial_world) (initial_world)) /\ (All Y, ((reachable (initial_world) Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))) (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotAnd 1 85
% 27.03/27.25  87. (-. (Ex X, ((reachable (initial_world) X) /\ (All Y, ((reachable X Y) => ((All Z, ((reachable Y Z) => ((p Z) \/ (All V, ((reachable Z V) => (q V)))))) <=> ((All W, ((reachable Y W) => (p W))) \/ (All W, ((reachable Y W) => (q W))))))))))   ### NotExists 86
% 27.03/27.25  % SZS output end Proof
% 27.03/27.25  (* END-PROOF *)
%------------------------------------------------------------------------------