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Zenon---0.7.1.THM-Prf.s

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%------------------------------------------------------------------------------
% File     : Zenon---0.7.1
% Problem  : GEO194+3 : TPTP v8.1.0. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_zenon %s %d

% Computer : n024.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 : Sat Jul 16 07:00:39 EDT 2022

% Result   : Theorem 0.72s 0.92s
% Output   : Proof 0.72s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : GEO194+3 : TPTP v8.1.0. Released v4.0.0.
% 0.03/0.13  % Command  : run_zenon %s %d
% 0.12/0.34  % Computer : n024.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  : 600
% 0.12/0.34  % DateTime : Sat Jun 18 06:43:32 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.72/0.92  (* PROOF-FOUND *)
% 0.72/0.92  % SZS status Theorem
% 0.72/0.92  (* BEGIN-PROOF *)
% 0.72/0.92  % SZS output start Proof
% 0.72/0.92  Theorem con : (forall X : zenon_U, (forall Y : zenon_U, (forall Z : zenon_U, (((convergent_lines X Y)/\((convergent_lines Z Y)/\(convergent_lines X Z)))->((apart_point_and_line (intersection_point X Y) Z)->(apart_point_and_line (intersection_point X Z) Y)))))).
% 0.72/0.92  Proof.
% 0.72/0.92  assert (zenon_L1_ : forall (zenon_TY_bn : zenon_U) (zenon_TX_bo : zenon_U), (forall Y : zenon_U, ((convergent_lines zenon_TX_bo Y)->(~(apart_point_and_line (intersection_point zenon_TX_bo Y) zenon_TX_bo)))) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> (apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TX_bo) -> False).
% 0.72/0.92  do 2 intro. intros zenon_H24 zenon_H25 zenon_H26.
% 0.72/0.92  generalize (zenon_H24 zenon_TY_bn). zenon_intro zenon_H29.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H29); [ zenon_intro zenon_H2b | zenon_intro zenon_H2a ].
% 0.72/0.92  exact (zenon_H2b zenon_H25).
% 0.72/0.92  exact (zenon_H2a zenon_H26).
% 0.72/0.92  (* end of lemma zenon_L1_ *)
% 0.72/0.92  assert (zenon_L2_ : forall (zenon_TZ_bu : zenon_U) (zenon_TX_bo : zenon_U), (apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TZ_bu) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> False).
% 0.72/0.92  do 2 intro. intros zenon_H2c zenon_H2d.
% 0.72/0.92  generalize (ci4 zenon_TX_bo). zenon_intro zenon_H2f.
% 0.72/0.92  generalize (zenon_H2f zenon_TZ_bu). zenon_intro zenon_H30.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H30); [ zenon_intro zenon_H32 | zenon_intro zenon_H31 ].
% 0.72/0.92  exact (zenon_H32 zenon_H2d).
% 0.72/0.92  exact (zenon_H31 zenon_H2c).
% 0.72/0.92  (* end of lemma zenon_L2_ *)
% 0.72/0.92  assert (zenon_L3_ : forall (zenon_TZ_bu : zenon_U) (zenon_TX_bo : zenon_U), (forall Y : zenon_U, ((convergent_lines zenon_TX_bo Y)->(~(apart_point_and_line (intersection_point zenon_TX_bo Y) zenon_TX_bo)))) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TX_bo) -> False).
% 0.72/0.92  do 2 intro. intros zenon_H24 zenon_H2d zenon_H33.
% 0.72/0.92  generalize (zenon_H24 zenon_TZ_bu). zenon_intro zenon_H34.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H34); [ zenon_intro zenon_H32 | zenon_intro zenon_H35 ].
% 0.72/0.92  exact (zenon_H32 zenon_H2d).
% 0.72/0.92  exact (zenon_H35 zenon_H33).
% 0.72/0.92  (* end of lemma zenon_L3_ *)
% 0.72/0.92  assert (zenon_L4_ : forall (zenon_TY_bn : zenon_U) (zenon_TZ_bu : zenon_U), (apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TY_bn) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> False).
% 0.72/0.92  do 2 intro. intros zenon_H36 zenon_H37.
% 0.72/0.92  generalize (ci4 zenon_TZ_bu). zenon_intro zenon_H38.
% 0.72/0.92  generalize (zenon_H38 zenon_TY_bn). zenon_intro zenon_H39.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H39); [ zenon_intro zenon_H3b | zenon_intro zenon_H3a ].
% 0.72/0.92  exact (zenon_H3b zenon_H37).
% 0.72/0.92  exact (zenon_H3a zenon_H36).
% 0.72/0.92  (* end of lemma zenon_L4_ *)
% 0.72/0.92  assert (zenon_L5_ : forall (zenon_TZ_bu : zenon_U) (zenon_TX_bo : zenon_U) (zenon_TY_bn : zenon_U), (forall Y : zenon_U, (forall Z : zenon_U, ((convergent_lines zenon_TY_bn Y)->((distinct_lines Y Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> (distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn)) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)) -> (forall Y : zenon_U, (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) Y)/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line Y U)\/(apart_point_and_line Y V)))))))) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TY_bn)) -> (~(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TZ_bu)) -> (distinct_lines zenon_TY_bn zenon_TZ_bu) -> (~(distinct_lines zenon_TY_bn zenon_TY_bn)) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> (forall Y : zenon_U, (forall Z : zenon_U, ((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Y)->((distinct_lines Y Z)\/(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z))))) -> (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn))/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) U)\/(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) V))))))) -> (convergent_lines zenon_TY_bn zenon_TX_bo) -> False).
% 0.72/0.92  do 3 intro. intros zenon_H3c zenon_H3d zenon_H3e zenon_H25 zenon_H3f zenon_H40 zenon_H2d zenon_H41 zenon_H42 zenon_H43 zenon_H44 zenon_H37 zenon_H45 zenon_H46 zenon_H47.
% 0.72/0.92  generalize (zenon_H3c zenon_TX_bo). zenon_intro zenon_H48.
% 0.72/0.92  generalize (zenon_H48 zenon_TY_bn). zenon_intro zenon_H49.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H49); [ zenon_intro zenon_H4b | zenon_intro zenon_H4a ].
% 0.72/0.92  exact (zenon_H4b zenon_H47).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H4a); [ zenon_intro zenon_H4d | zenon_intro zenon_H4c ].
% 0.72/0.92  generalize (zenon_H46 zenon_TX_bo). zenon_intro zenon_H4e.
% 0.72/0.92  generalize (zenon_H4e zenon_TY_bn). zenon_intro zenon_H4f.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H4f); [ zenon_intro zenon_H51 | zenon_intro zenon_H50 ].
% 0.72/0.92  apply (zenon_notand_s _ _ zenon_H51); [ zenon_intro zenon_H53 | zenon_intro zenon_H52 ].
% 0.72/0.92  exact (zenon_H53 zenon_H3e).
% 0.72/0.92  exact (zenon_H52 zenon_H4d).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H50); [ zenon_intro zenon_H26 | zenon_intro zenon_H54 ].
% 0.72/0.92  generalize (ci3 zenon_TX_bo). zenon_intro zenon_H24.
% 0.72/0.92  apply (zenon_L1_ zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H54); [ zenon_intro zenon_H56 | zenon_intro zenon_H55 ].
% 0.72/0.92  exact (zenon_H3f zenon_H56).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H55); [ zenon_intro zenon_H57 | zenon_intro zenon_H36 ].
% 0.72/0.92  generalize (ci3 zenon_TX_bo). zenon_intro zenon_H24.
% 0.72/0.92  generalize (zenon_H45 zenon_TX_bo). zenon_intro zenon_H58.
% 0.72/0.92  generalize (ceq2 (intersection_point zenon_TZ_bu zenon_TY_bn)). zenon_intro zenon_H59.
% 0.72/0.92  generalize (zenon_H59 zenon_TY_bn). zenon_intro zenon_H5a.
% 0.72/0.92  generalize (zenon_H5a zenon_TY_bn). zenon_intro zenon_H5b.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H5b); [ zenon_intro zenon_H3a | zenon_intro zenon_H5c ].
% 0.72/0.92  generalize (zenon_H58 zenon_TX_bo). zenon_intro zenon_H5d.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H5d); [ zenon_intro zenon_H2a | zenon_intro zenon_H5e ].
% 0.72/0.92  generalize (ceq1 (intersection_point zenon_TZ_bu zenon_TY_bn)). zenon_intro zenon_H5f.
% 0.72/0.92  generalize (zenon_H5f zenon_TX_bo). zenon_intro zenon_H60.
% 0.72/0.92  generalize (zenon_H60 (intersection_point zenon_TX_bo zenon_TY_bn)). zenon_intro zenon_H61.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H61); [ zenon_intro zenon_H63 | zenon_intro zenon_H62 ].
% 0.72/0.92  exact (zenon_H63 zenon_H57).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H62); [ zenon_intro zenon_H64 | zenon_intro zenon_H26 ].
% 0.72/0.92  generalize (apart4 (intersection_point zenon_TZ_bu zenon_TY_bn)). zenon_intro zenon_H65.
% 0.72/0.92  generalize (cu1 (intersection_point zenon_TZ_bu zenon_TY_bn)). zenon_intro zenon_H66.
% 0.72/0.92  generalize (zenon_H65 (intersection_point zenon_TX_bo zenon_TY_bn)). zenon_intro zenon_H67.
% 0.72/0.92  generalize (zenon_H67 (intersection_point zenon_TX_bo zenon_TZ_bu)). zenon_intro zenon_H68.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H68); [ zenon_intro zenon_H6a | zenon_intro zenon_H69 ].
% 0.72/0.92  exact (zenon_H6a zenon_H64).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H69); [ zenon_intro zenon_H6c | zenon_intro zenon_H6b ].
% 0.72/0.92  generalize (zenon_H66 (intersection_point zenon_TX_bo zenon_TZ_bu)). zenon_intro zenon_H6d.
% 0.72/0.92  generalize (zenon_H6d zenon_TY_bn). zenon_intro zenon_H6e.
% 0.72/0.92  generalize (zenon_H6e zenon_TZ_bu). zenon_intro zenon_H6f.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H6f); [ zenon_intro zenon_H71 | zenon_intro zenon_H70 ].
% 0.72/0.92  apply (zenon_notand_s _ _ zenon_H71); [ zenon_intro zenon_H73 | zenon_intro zenon_H72 ].
% 0.72/0.92  exact (zenon_H73 zenon_H6c).
% 0.72/0.92  exact (zenon_H72 zenon_H43).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H70); [ zenon_intro zenon_H36 | zenon_intro zenon_H74 ].
% 0.72/0.92  exact (zenon_H3a zenon_H36).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H74); [ zenon_intro zenon_H76 | zenon_intro zenon_H75 ].
% 0.72/0.92  exact (zenon_H42 zenon_H76).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H75); [ zenon_intro zenon_H77 | zenon_intro zenon_H2c ].
% 0.72/0.92  exact (zenon_H41 zenon_H77).
% 0.72/0.92  apply (zenon_L2_ zenon_TZ_bu zenon_TX_bo); trivial.
% 0.72/0.92  generalize (zenon_H40 (intersection_point zenon_TX_bo zenon_TZ_bu)). zenon_intro zenon_H78.
% 0.72/0.92  generalize (zenon_H78 zenon_TX_bo). zenon_intro zenon_H79.
% 0.72/0.92  generalize (zenon_H79 zenon_TY_bn). zenon_intro zenon_H7a.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H7a); [ zenon_intro zenon_H7c | zenon_intro zenon_H7b ].
% 0.72/0.92  apply (zenon_notand_s _ _ zenon_H7c); [ zenon_intro zenon_H7d | zenon_intro zenon_H52 ].
% 0.72/0.92  exact (zenon_H7d zenon_H6b).
% 0.72/0.92  exact (zenon_H52 zenon_H4d).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H7b); [ zenon_intro zenon_H26 | zenon_intro zenon_H7e ].
% 0.72/0.92  exact (zenon_H2a zenon_H26).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H7e); [ zenon_intro zenon_H56 | zenon_intro zenon_H7f ].
% 0.72/0.92  exact (zenon_H3f zenon_H56).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H7f); [ zenon_intro zenon_H33 | zenon_intro zenon_H77 ].
% 0.72/0.92  apply (zenon_L3_ zenon_TZ_bu zenon_TX_bo); trivial.
% 0.72/0.92  exact (zenon_H41 zenon_H77).
% 0.72/0.92  exact (zenon_H2a zenon_H26).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H5e); [ zenon_intro zenon_H80 | zenon_intro zenon_H26 ].
% 0.72/0.92  generalize (apart2 zenon_TX_bo). zenon_intro zenon_H81.
% 0.72/0.92  exact (zenon_H81 zenon_H80).
% 0.72/0.92  apply (zenon_L1_ zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H5c); [ zenon_intro zenon_H82 | zenon_intro zenon_H36 ].
% 0.72/0.92  exact (zenon_H44 zenon_H82).
% 0.72/0.92  apply (zenon_L4_ zenon_TY_bn zenon_TZ_bu); trivial.
% 0.72/0.92  apply (zenon_L4_ zenon_TY_bn zenon_TZ_bu); trivial.
% 0.72/0.92  exact (zenon_H3d zenon_H4c).
% 0.72/0.92  (* end of lemma zenon_L5_ *)
% 0.72/0.92  assert (zenon_L6_ : forall (zenon_TZ_bu : zenon_U) (zenon_TY_bn : zenon_U) (zenon_TX_bo : zenon_U), (forall Z : zenon_U, ((convergent_lines zenon_TX_bo zenon_TY_bn)->((distinct_lines zenon_TY_bn Z)\/(convergent_lines zenon_TX_bo Z)))) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> (forall Z : zenon_U, ((distinct_lines zenon_TY_bn Z)->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)) -> (forall Y : zenon_U, ((convergent_lines zenon_TX_bo Y)->(~(apart_point_and_line (intersection_point zenon_TX_bo Y) zenon_TX_bo)))) -> (forall Y : zenon_U, (forall Z : zenon_U, ((convergent_lines zenon_TY_bn Y)->((distinct_lines Y Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> (distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn)) -> (forall Y : zenon_U, (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) Y)/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line Y U)\/(apart_point_and_line Y V)))))))) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TY_bn)) -> (~(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TZ_bu)) -> (distinct_lines zenon_TY_bn zenon_TZ_bu) -> (~(distinct_lines zenon_TY_bn zenon_TY_bn)) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> (forall Y : zenon_U, (forall Z : zenon_U, ((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Y)->((distinct_lines Y Z)\/(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z))))) -> (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn))/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) U)\/(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) V))))))) -> (~(convergent_lines zenon_TX_bo zenon_TX_bo)) -> False).
% 0.72/0.92  do 3 intro. intros zenon_H83 zenon_H25 zenon_H84 zenon_H3f zenon_H24 zenon_H3c zenon_H3d zenon_H3e zenon_H40 zenon_H2d zenon_H41 zenon_H42 zenon_H43 zenon_H44 zenon_H37 zenon_H45 zenon_H46 zenon_H85.
% 0.72/0.92  generalize (zenon_H83 zenon_TX_bo). zenon_intro zenon_H86.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H86); [ zenon_intro zenon_H2b | zenon_intro zenon_H87 ].
% 0.72/0.92  exact (zenon_H2b zenon_H25).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H87); [ zenon_intro zenon_H89 | zenon_intro zenon_H88 ].
% 0.72/0.92  generalize (zenon_H84 zenon_TX_bo). zenon_intro zenon_H8a.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H8a); [ zenon_intro zenon_H8c | zenon_intro zenon_H8b ].
% 0.72/0.92  exact (zenon_H8c zenon_H89).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H8b); [ zenon_intro zenon_H56 | zenon_intro zenon_H8d ].
% 0.72/0.92  exact (zenon_H3f zenon_H56).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H8d); [ zenon_intro zenon_H26 | zenon_intro zenon_H47 ].
% 0.72/0.92  apply (zenon_L1_ zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.92  apply (zenon_L5_ zenon_TZ_bu zenon_TX_bo zenon_TY_bn); trivial.
% 0.72/0.92  exact (zenon_H85 zenon_H88).
% 0.72/0.92  (* end of lemma zenon_L6_ *)
% 0.72/0.92  assert (zenon_L7_ : forall (zenon_TY_bn : zenon_U) (zenon_TX_bo : zenon_U), ((convergent_lines zenon_TX_bo zenon_TY_bn)/\(unorthogonal_lines zenon_TX_bo zenon_TY_bn)) -> (~(unorthogonal_lines zenon_TX_bo zenon_TY_bn)) -> False).
% 0.72/0.92  do 2 intro. intros zenon_H8e zenon_H8f.
% 0.72/0.92  apply (zenon_and_s _ _ zenon_H8e). zenon_intro zenon_H25. zenon_intro zenon_H90.
% 0.72/0.92  exact (zenon_H8f zenon_H90).
% 0.72/0.92  (* end of lemma zenon_L7_ *)
% 0.72/0.92  assert (zenon_L8_ : forall (zenon_TZ_bu : zenon_U) (zenon_TY_bn : zenon_U) (zenon_TX_bo : zenon_U), (forall M : zenon_U, (forall N : zenon_U, (((convergent_lines zenon_TX_bo M)/\(unorthogonal_lines zenon_TX_bo M))->(((convergent_lines zenon_TX_bo N)/\(unorthogonal_lines zenon_TX_bo N))\/((convergent_lines M N)/\(unorthogonal_lines M N)))))) -> (forall Z : zenon_U, ((convergent_lines zenon_TX_bo zenon_TY_bn)->((distinct_lines zenon_TY_bn Z)\/(convergent_lines zenon_TX_bo Z)))) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> (forall Z : zenon_U, ((distinct_lines zenon_TY_bn Z)->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)) -> (forall Y : zenon_U, (forall Z : zenon_U, ((convergent_lines zenon_TY_bn Y)->((distinct_lines Y Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> (distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn)) -> (forall Y : zenon_U, (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) Y)/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line Y U)\/(apart_point_and_line Y V)))))))) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TY_bn)) -> (~(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TZ_bu)) -> (distinct_lines zenon_TY_bn zenon_TZ_bu) -> (~(distinct_lines zenon_TY_bn zenon_TY_bn)) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> (forall Y : zenon_U, (forall Z : zenon_U, ((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Y)->((distinct_lines Y Z)\/(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z))))) -> (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn))/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) U)\/(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) V))))))) -> (unorthogonal_lines zenon_TX_bo zenon_TX_bo) -> (~(unorthogonal_lines zenon_TX_bo zenon_TY_bn)) -> False).
% 0.72/0.92  do 3 intro. intros zenon_H91 zenon_H83 zenon_H25 zenon_H84 zenon_H3f zenon_H3c zenon_H3d zenon_H3e zenon_H40 zenon_H2d zenon_H41 zenon_H42 zenon_H43 zenon_H44 zenon_H37 zenon_H45 zenon_H46 zenon_H92 zenon_H8f.
% 0.72/0.92  generalize (zenon_H91 zenon_TX_bo). zenon_intro zenon_H93.
% 0.72/0.92  generalize (ci3 zenon_TX_bo). zenon_intro zenon_H24.
% 0.72/0.92  generalize (zenon_H93 zenon_TY_bn). zenon_intro zenon_H94.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H94); [ zenon_intro zenon_H96 | zenon_intro zenon_H95 ].
% 0.72/0.92  apply (zenon_notand_s _ _ zenon_H96); [ zenon_intro zenon_H85 | zenon_intro zenon_H97 ].
% 0.72/0.92  apply (zenon_L6_ zenon_TZ_bu zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.92  exact (zenon_H97 zenon_H92).
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H95); [ zenon_intro zenon_H8e | zenon_intro zenon_H8e ].
% 0.72/0.92  apply (zenon_L7_ zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.92  apply (zenon_L7_ zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.92  (* end of lemma zenon_L8_ *)
% 0.72/0.92  assert (zenon_L9_ : forall (zenon_TY_bn : zenon_U), (~((~(convergent_lines zenon_TY_bn zenon_TY_bn))\/(~(unorthogonal_lines zenon_TY_bn zenon_TY_bn)))) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> False).
% 0.72/0.92  do 1 intro. intros zenon_H98 zenon_H3d.
% 0.72/0.92  apply (zenon_notor_s _ _ zenon_H98). zenon_intro zenon_H9a. zenon_intro zenon_H99.
% 0.72/0.92  exact (zenon_H9a zenon_H3d).
% 0.72/0.92  (* end of lemma zenon_L9_ *)
% 0.72/0.92  assert (zenon_L10_ : forall (zenon_TZ_bu : zenon_U) (zenon_TX_bo : zenon_U) (zenon_TY_bn : zenon_U), (forall Y : zenon_U, (forall Z : zenon_U, ((convergent_lines zenon_TY_bn Y)->((distinct_lines Y Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> (distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn)) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)) -> (forall Y : zenon_U, (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) Y)/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line Y U)\/(apart_point_and_line Y V)))))))) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TY_bn)) -> (~(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TZ_bu)) -> (distinct_lines zenon_TY_bn zenon_TZ_bu) -> (~(distinct_lines zenon_TY_bn zenon_TY_bn)) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> (forall Y : zenon_U, (forall Z : zenon_U, ((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Y)->((distinct_lines Y Z)\/(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z))))) -> (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn))/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) U)\/(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) V))))))) -> (unorthogonal_lines zenon_TX_bo zenon_TY_bn) -> False).
% 0.72/0.92  do 3 intro. intros zenon_H3c zenon_H3d zenon_H3e zenon_H25 zenon_H3f zenon_H40 zenon_H2d zenon_H41 zenon_H42 zenon_H43 zenon_H44 zenon_H37 zenon_H45 zenon_H46 zenon_H90.
% 0.72/0.92  generalize (cotno1 zenon_TY_bn). zenon_intro zenon_H9b.
% 0.72/0.92  generalize (zenon_H9b zenon_TX_bo). zenon_intro zenon_H9c.
% 0.72/0.92  generalize (zenon_H9c zenon_TY_bn). zenon_intro zenon_H9d.
% 0.72/0.92  apply (zenon_imply_s _ _ zenon_H9d); [ zenon_intro zenon_H9f | zenon_intro zenon_H9e ].
% 0.72/0.92  apply (zenon_notand_s _ _ zenon_H9f); [ zenon_intro zenon_Ha0 | zenon_intro zenon_H98 ].
% 0.72/0.92  apply (zenon_notor_s _ _ zenon_Ha0). zenon_intro zenon_Ha2. zenon_intro zenon_Ha1.
% 0.72/0.92  apply zenon_Ha2. zenon_intro zenon_H47.
% 0.72/0.92  apply (zenon_L5_ zenon_TZ_bu zenon_TX_bo zenon_TY_bn); trivial.
% 0.72/0.92  apply (zenon_L9_ zenon_TY_bn); trivial.
% 0.72/0.92  apply (zenon_or_s _ _ zenon_H9e); [ zenon_intro zenon_H2b | zenon_intro zenon_H8f ].
% 0.72/0.92  exact (zenon_H2b zenon_H25).
% 0.72/0.92  exact (zenon_H8f zenon_H90).
% 0.72/0.92  (* end of lemma zenon_L10_ *)
% 0.72/0.92  assert (zenon_L11_ : forall (zenon_TZ_bu : zenon_U) (zenon_TY_bn : zenon_U) (zenon_TX_bo : zenon_U), ((convergent_lines zenon_TX_bo zenon_TY_bn)/\(unorthogonal_lines zenon_TX_bo zenon_TY_bn)) -> (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn))/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) U)\/(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) V))))))) -> (forall Y : zenon_U, (forall Z : zenon_U, ((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Y)->((distinct_lines Y Z)\/(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z))))) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> (~(distinct_lines zenon_TY_bn zenon_TY_bn)) -> (distinct_lines zenon_TY_bn zenon_TZ_bu) -> (~(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TZ_bu)) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TY_bn)) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (forall Y : zenon_U, (forall U : zenon_U, (forall V : zenon_U, (((distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) Y)/\(distinct_lines U V))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) U)\/((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) V)\/((apart_point_and_line Y U)\/(apart_point_and_line Y V)))))))) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> (distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn)) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> (forall Y : zenon_U, (forall Z : zenon_U, ((convergent_lines zenon_TY_bn Y)->((distinct_lines Y Z)\/(convergent_lines zenon_TY_bn Z))))) -> False).
% 0.72/0.92  do 3 intro. intros zenon_H8e zenon_H46 zenon_H45 zenon_H37 zenon_H44 zenon_H43 zenon_H42 zenon_H41 zenon_H2d zenon_H40 zenon_H3f zenon_H25 zenon_H3e zenon_H3d zenon_H3c.
% 0.72/0.92  apply (zenon_and_s _ _ zenon_H8e). zenon_intro zenon_H25. zenon_intro zenon_H90.
% 0.72/0.92  apply (zenon_L10_ zenon_TZ_bu zenon_TX_bo zenon_TY_bn); trivial.
% 0.72/0.92  (* end of lemma zenon_L11_ *)
% 0.72/0.92  assert (zenon_L12_ : forall (zenon_TY_bn : zenon_U), ((convergent_lines zenon_TY_bn zenon_TY_bn)/\(unorthogonal_lines zenon_TY_bn zenon_TY_bn)) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> False).
% 0.72/0.92  do 1 intro. intros zenon_Ha3 zenon_H3d.
% 0.72/0.92  apply (zenon_and_s _ _ zenon_Ha3). zenon_intro zenon_H4c. zenon_intro zenon_Ha4.
% 0.72/0.92  exact (zenon_H3d zenon_H4c).
% 0.72/0.92  (* end of lemma zenon_L12_ *)
% 0.72/0.92  assert (zenon_L13_ : forall (zenon_TZ_bu : zenon_U) (zenon_TY_bn : zenon_U) (zenon_TX_bo : zenon_U), (forall Y : zenon_U, (forall Z : zenon_U, ((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Y)->((distinct_lines Y Z)\/(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z))))) -> (convergent_lines zenon_TZ_bu zenon_TY_bn) -> (distinct_lines zenon_TY_bn zenon_TZ_bu) -> (~(apart_point_and_line (intersection_point zenon_TZ_bu zenon_TY_bn) zenon_TZ_bu)) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TZ_bu) zenon_TY_bn)) -> (convergent_lines zenon_TX_bo zenon_TZ_bu) -> (distinct_points (intersection_point zenon_TX_bo zenon_TY_bn) (intersection_point zenon_TZ_bu zenon_TY_bn)) -> (~(convergent_lines zenon_TY_bn zenon_TY_bn)) -> (forall Y : zenon_U, (forall Z : zenon_U, ((convergent_lines zenon_TY_bn Y)->((distinct_lines Y Z)\/(convergent_lines zenon_TY_bn Z))))) -> (~(apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) zenon_TY_bn)) -> (forall Z : zenon_U, ((convergent_lines zenon_TX_bo zenon_TY_bn)->((distinct_lines zenon_TY_bn Z)\/(convergent_lines zenon_TX_bo Z)))) -> (convergent_lines zenon_TX_bo zenon_TY_bn) -> False).
% 0.72/0.93  do 3 intro. intros zenon_H45 zenon_H37 zenon_H43 zenon_H42 zenon_H41 zenon_H2d zenon_H3e zenon_H3d zenon_H3c zenon_H3f zenon_H83 zenon_H25.
% 0.72/0.93  generalize (cup1 (intersection_point zenon_TX_bo zenon_TY_bn)). zenon_intro zenon_Ha5.
% 0.72/0.93  generalize (zenon_Ha5 zenon_TY_bn). zenon_intro zenon_H84.
% 0.72/0.93  generalize (cu1 (intersection_point zenon_TX_bo zenon_TY_bn)). zenon_intro zenon_H40.
% 0.72/0.93  generalize (zenon_H40 (intersection_point zenon_TZ_bu zenon_TY_bn)). zenon_intro zenon_H46.
% 0.72/0.93  generalize (apart2 zenon_TY_bn). zenon_intro zenon_H44.
% 0.72/0.93  generalize (couo1 zenon_TX_bo). zenon_intro zenon_Ha6.
% 0.72/0.93  generalize (zenon_Ha6 zenon_TX_bo). zenon_intro zenon_Ha7.
% 0.72/0.93  generalize (zenon_Ha7 zenon_TY_bn). zenon_intro zenon_Ha8.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Ha8); [ zenon_intro zenon_Ha9 | zenon_intro zenon_H2b ].
% 0.72/0.93  apply (zenon_notand_s _ _ zenon_Ha9); [ zenon_intro zenon_Hab | zenon_intro zenon_Haa ].
% 0.72/0.93  apply zenon_Hab. zenon_intro zenon_H92.
% 0.72/0.93  generalize (oac1 zenon_TX_bo). zenon_intro zenon_H91.
% 0.72/0.93  generalize (zenon_H91 zenon_TY_bn). zenon_intro zenon_Hac.
% 0.72/0.93  generalize (zenon_Hac zenon_TY_bn). zenon_intro zenon_Had.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Had); [ zenon_intro zenon_Haf | zenon_intro zenon_Hae ].
% 0.72/0.93  apply (zenon_notand_s _ _ zenon_Haf); [ zenon_intro zenon_H2b | zenon_intro zenon_H8f ].
% 0.72/0.93  exact (zenon_H2b zenon_H25).
% 0.72/0.93  apply (zenon_L8_ zenon_TZ_bu zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.93  apply (zenon_or_s _ _ zenon_Hae); [ zenon_intro zenon_H8e | zenon_intro zenon_Ha3 ].
% 0.72/0.93  apply (zenon_L11_ zenon_TZ_bu zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.93  apply (zenon_L12_ zenon_TY_bn); trivial.
% 0.72/0.93  apply zenon_Haa. zenon_intro zenon_H90.
% 0.72/0.93  apply (zenon_L10_ zenon_TZ_bu zenon_TX_bo zenon_TY_bn); trivial.
% 0.72/0.93  exact (zenon_H2b zenon_H25).
% 0.72/0.93  (* end of lemma zenon_L13_ *)
% 0.72/0.93  apply NNPP. intro zenon_G.
% 0.72/0.93  apply (zenon_notallex_s (fun X : zenon_U => (forall Y : zenon_U, (forall Z : zenon_U, (((convergent_lines X Y)/\((convergent_lines Z Y)/\(convergent_lines X Z)))->((apart_point_and_line (intersection_point X Y) Z)->(apart_point_and_line (intersection_point X Z) Y)))))) zenon_G); [ zenon_intro zenon_Hb0; idtac ].
% 0.72/0.93  elim zenon_Hb0. zenon_intro zenon_TX_bo. zenon_intro zenon_Hb1.
% 0.72/0.93  apply (zenon_notallex_s (fun Y : zenon_U => (forall Z : zenon_U, (((convergent_lines zenon_TX_bo Y)/\((convergent_lines Z Y)/\(convergent_lines zenon_TX_bo Z)))->((apart_point_and_line (intersection_point zenon_TX_bo Y) Z)->(apart_point_and_line (intersection_point zenon_TX_bo Z) Y))))) zenon_Hb1); [ zenon_intro zenon_Hb2; idtac ].
% 0.72/0.93  elim zenon_Hb2. zenon_intro zenon_TY_bn. zenon_intro zenon_Hb3.
% 0.72/0.93  apply (zenon_notallex_s (fun Z : zenon_U => (((convergent_lines zenon_TX_bo zenon_TY_bn)/\((convergent_lines Z zenon_TY_bn)/\(convergent_lines zenon_TX_bo Z)))->((apart_point_and_line (intersection_point zenon_TX_bo zenon_TY_bn) Z)->(apart_point_and_line (intersection_point zenon_TX_bo Z) zenon_TY_bn)))) zenon_Hb3); [ zenon_intro zenon_Hb4; idtac ].
% 0.72/0.93  elim zenon_Hb4. zenon_intro zenon_TZ_bu. zenon_intro zenon_Hb5.
% 0.72/0.93  apply (zenon_notimply_s _ _ zenon_Hb5). zenon_intro zenon_Hb7. zenon_intro zenon_Hb6.
% 0.72/0.93  apply (zenon_notimply_s _ _ zenon_Hb6). zenon_intro zenon_Hb8. zenon_intro zenon_H41.
% 0.72/0.93  apply (zenon_and_s _ _ zenon_Hb7). zenon_intro zenon_H25. zenon_intro zenon_Hb9.
% 0.72/0.93  apply (zenon_and_s _ _ zenon_Hb9). zenon_intro zenon_H37. zenon_intro zenon_H2d.
% 0.72/0.93  generalize (ci3 zenon_TZ_bu). zenon_intro zenon_Hba.
% 0.72/0.93  generalize (apart3 zenon_TZ_bu). zenon_intro zenon_Hbb.
% 0.72/0.93  generalize (apart3 zenon_TY_bn). zenon_intro zenon_H3d.
% 0.72/0.93  generalize (zenon_Hba zenon_TY_bn). zenon_intro zenon_Hbc.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Hbc); [ zenon_intro zenon_H3b | zenon_intro zenon_H42 ].
% 0.72/0.93  exact (zenon_H3b zenon_H37).
% 0.72/0.93  generalize (ceq3 zenon_TX_bo). zenon_intro zenon_Hbd.
% 0.72/0.93  generalize (ceq3 zenon_TZ_bu). zenon_intro zenon_Hbe.
% 0.72/0.93  generalize (zenon_Hbd zenon_TY_bn). zenon_intro zenon_H83.
% 0.72/0.93  generalize (zenon_Hbe zenon_TY_bn). zenon_intro zenon_Hbf.
% 0.72/0.93  generalize (zenon_Hbf zenon_TZ_bu). zenon_intro zenon_Hc0.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Hc0); [ zenon_intro zenon_H3b | zenon_intro zenon_Hc1 ].
% 0.72/0.93  exact (zenon_H3b zenon_H37).
% 0.72/0.93  apply (zenon_or_s _ _ zenon_Hc1); [ zenon_intro zenon_H43 | zenon_intro zenon_Hc2 ].
% 0.72/0.93  generalize (ceq3 zenon_TY_bn). zenon_intro zenon_H3c.
% 0.72/0.93  generalize (ceq1 (intersection_point zenon_TX_bo zenon_TY_bn)). zenon_intro zenon_Hc3.
% 0.72/0.93  generalize (zenon_Hc3 zenon_TZ_bu). zenon_intro zenon_Hc4.
% 0.72/0.93  generalize (ceq2 (intersection_point zenon_TX_bo zenon_TY_bn)). zenon_intro zenon_H45.
% 0.72/0.93  generalize (zenon_H45 zenon_TY_bn). zenon_intro zenon_Hc5.
% 0.72/0.93  generalize (zenon_Hc4 (intersection_point zenon_TZ_bu zenon_TY_bn)). zenon_intro zenon_Hc6.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Hc6); [ zenon_intro zenon_Hc8 | zenon_intro zenon_Hc7 ].
% 0.72/0.93  exact (zenon_Hc8 zenon_Hb8).
% 0.72/0.93  apply (zenon_or_s _ _ zenon_Hc7); [ zenon_intro zenon_H3e | zenon_intro zenon_H76 ].
% 0.72/0.93  generalize (zenon_Hc5 zenon_TY_bn). zenon_intro zenon_Hc9.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Hc9); [ zenon_intro zenon_H3f | zenon_intro zenon_Hca ].
% 0.72/0.93  apply (zenon_L13_ zenon_TZ_bu zenon_TY_bn zenon_TX_bo); trivial.
% 0.72/0.93  apply (zenon_or_s _ _ zenon_Hca); [ zenon_intro zenon_H82 | zenon_intro zenon_H56 ].
% 0.72/0.93  generalize (apart2 zenon_TY_bn). zenon_intro zenon_H44.
% 0.72/0.93  exact (zenon_H44 zenon_H82).
% 0.72/0.93  generalize (ci4 zenon_TX_bo). zenon_intro zenon_H2f.
% 0.72/0.93  generalize (zenon_H2f zenon_TY_bn). zenon_intro zenon_Hcb.
% 0.72/0.93  apply (zenon_imply_s _ _ zenon_Hcb); [ zenon_intro zenon_H2b | zenon_intro zenon_H3f ].
% 0.72/0.93  exact (zenon_H2b zenon_H25).
% 0.72/0.93  exact (zenon_H3f zenon_H56).
% 0.72/0.93  exact (zenon_H42 zenon_H76).
% 0.72/0.93  exact (zenon_Hbb zenon_Hc2).
% 0.72/0.93  Qed.
% 0.72/0.93  % SZS output end Proof
% 0.72/0.93  (* END-PROOF *)
% 0.72/0.93  nodes searched: 28132
% 0.72/0.93  max branch formulas: 2977
% 0.72/0.93  proof nodes created: 1521
% 0.72/0.93  formulas created: 70578
% 0.72/0.93  
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