TSTP Solution File: SWV358-2 by Moca---0.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Moca---0.1
% Problem  : SWV358-2 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : moca.sh %s

% Computer : n011.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 : Wed Jul 20 20:43:32 EDT 2022

% Result   : Unsatisfiable 7.60s 7.46s
% Output   : Proof 7.60s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : SWV358-2 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.14  % Command  : moca.sh %s
% 0.13/0.35  % Computer : n011.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Wed Jun 15 23:31:50 EDT 2022
% 0.13/0.36  % CPUTime  : 
% 7.60/7.46  % SZS status Unsatisfiable
% 7.60/7.46  % SZS output start Proof
% 7.60/7.46  The input problem is unsatisfiable because
% 7.60/7.46  
% 7.60/7.46  [1] the following set of Horn clauses is unsatisfiable:
% 7.60/7.46  
% 7.60/7.46  	c_in(c_Event_Oevent_OSays(V_A, V_B, V_X), c_List_Oset(V_evs, tc_Event_Oevent), tc_Event_Oevent) ==> c_in(V_X, c_Event_Oknows(c_Message_Oagent_OSpy, V_evs), tc_Message_Omsg)
% 7.60/7.46  	c_in(V_c, c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, V_evs)), tc_Message_Omsg) ==> c_in(V_c, c_Event_Oused(V_evs), tc_Message_Omsg)
% 7.60/7.46  	c_in(c_Message_Omsg_OMPair(V_X, V_Y), c_Message_Oparts(V_H), tc_Message_Omsg) ==> c_in(V_Y, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	c_in(c_Message_Omsg_OCrypt(V_K, V_X), c_Message_Oparts(V_H), tc_Message_Omsg) ==> c_in(V_X, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	c_in(V_X, V_H, tc_Message_Omsg) ==> c_in(V_X, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	c_in(c_Message_Omsg_ONonce(v_NB), c_Event_Oused(v_evs2), tc_Message_Omsg) ==> \bottom
% 7.60/7.46  	c_in(c_Event_Oevent_OSays(v_B, c_Message_Oagent_OServer, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))))), c_List_Oset(v_evs2, tc_Event_Oevent), tc_Event_Oevent)
% 7.60/7.46  
% 7.60/7.46  This holds because
% 7.60/7.46  
% 7.60/7.46  [2] the following E entails the following G (Claessen-Smallbone's transformation (2018)):
% 7.60/7.46  
% 7.60/7.46  E:
% 7.60/7.46  	c_in(c_Event_Oevent_OSays(v_B, c_Message_Oagent_OServer, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))))), c_List_Oset(v_evs2, tc_Event_Oevent), tc_Event_Oevent) = true__
% 7.60/7.46  	f1(c_in(c_Event_Oevent_OSays(V_A, V_B, V_X), c_List_Oset(V_evs, tc_Event_Oevent), tc_Event_Oevent), V_X, V_evs) = true__
% 7.60/7.46  	f1(true__, V_X, V_evs) = c_in(V_X, c_Event_Oknows(c_Message_Oagent_OSpy, V_evs), tc_Message_Omsg)
% 7.60/7.46  	f2(c_in(V_c, c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, V_evs)), tc_Message_Omsg), V_c, V_evs) = true__
% 7.60/7.46  	f2(true__, V_c, V_evs) = c_in(V_c, c_Event_Oused(V_evs), tc_Message_Omsg)
% 7.60/7.46  	f3(c_in(c_Message_Omsg_OMPair(V_X, V_Y), c_Message_Oparts(V_H), tc_Message_Omsg), V_Y, V_H) = true__
% 7.60/7.46  	f3(true__, V_Y, V_H) = c_in(V_Y, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	f4(c_in(c_Message_Omsg_OCrypt(V_K, V_X), c_Message_Oparts(V_H), tc_Message_Omsg), V_X, V_H) = true__
% 7.60/7.46  	f4(true__, V_X, V_H) = c_in(V_X, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	f5(c_in(V_X, V_H, tc_Message_Omsg), V_X, V_H) = true__
% 7.60/7.46  	f5(true__, V_X, V_H) = c_in(V_X, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	f6(c_in(c_Message_Omsg_ONonce(v_NB), c_Event_Oused(v_evs2), tc_Message_Omsg)) = true__
% 7.60/7.46  	f6(true__) = false__
% 7.60/7.46  G:
% 7.60/7.46  	true__ = false__
% 7.60/7.46  
% 7.60/7.46  This holds because
% 7.60/7.46  
% 7.60/7.46  [3] E entails the following ordered TRS and the lhs and rhs of G join by the TRS:
% 7.60/7.46  
% 7.60/7.46  
% 7.60/7.46  	c_in(V_X, c_Event_Oknows(c_Message_Oagent_OSpy, V_evs), tc_Message_Omsg) -> f1(true__, V_X, V_evs)
% 7.60/7.46  	c_in(V_Y, c_Message_Oparts(V_H), tc_Message_Omsg) -> f3(true__, V_Y, V_H)
% 7.60/7.46  	c_in(V_c, c_Event_Oused(V_evs), tc_Message_Omsg) -> f2(true__, V_c, V_evs)
% 7.60/7.46  	c_in(c_Event_Oevent_OSays(v_B, c_Message_Oagent_OServer, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))))), c_List_Oset(v_evs2, tc_Event_Oevent), tc_Event_Oevent) -> true__
% 7.60/7.46  	f1(c_in(c_Event_Oevent_OSays(V_A, V_B, V_X), c_List_Oset(V_evs, tc_Event_Oevent), tc_Event_Oevent), V_X, V_evs) -> true__
% 7.60/7.46  	f1(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), v_evs2) -> true__
% 7.60/7.46  	f2(c_in(V_c, c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, V_evs)), tc_Message_Omsg), V_c, V_evs) -> true__
% 7.60/7.46  	f2(f3(true__, Y0, c_Event_Oknows(c_Message_Oagent_OSpy, Y1)), Y0, Y1) -> true__
% 7.60/7.46  	f2(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), v_evs2) -> true__
% 7.60/7.46  	f2(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), v_evs2) -> true__
% 7.60/7.46  	f2(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), v_evs2) -> true__
% 7.60/7.46  	f2(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), v_evs2) -> true__
% 7.60/7.46  	f2(true__, c_Message_Omsg_ONonce(v_NB), v_evs2) -> true__
% 7.60/7.46  	f3(c_in(c_Message_Omsg_OMPair(V_X, V_Y), c_Message_Oparts(V_H), tc_Message_Omsg), V_Y, V_H) -> true__
% 7.60/7.46  	f3(f3(true__, c_Message_Omsg_OMPair(Y0, Y1), Y2), Y1, Y2) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Event_Oused(v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Message_Oparts(c_Event_Oused(v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Message_Oparts(c_Message_Oparts(c_Event_Oused(v_evs2)))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)))), c_Message_Oparts(c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Event_Oused(v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Message_Oparts(c_Event_Oused(v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Message_Oparts(c_Message_Oparts(c_Event_Oused(v_evs2)))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Message_Oparts(c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))), c_Message_Oparts(c_Message_Oparts(c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)))))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), c_Event_Oused(v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), c_Message_Oparts(c_Event_Oused(v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_B), c_Message_Omsg_OCrypt(c_Public_OshrK(v_B), c_Message_Omsg_OMPair(c_Message_Omsg_OAgent(v_A), c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB))))), c_Message_Oparts(c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), c_Event_Oused(v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), c_Message_Oparts(c_Event_Oused(v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_OMPair(c_Message_Omsg_ONonce(v_NA), c_Message_Omsg_ONonce(v_NB)), c_Message_Oparts(c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_ONonce(v_NB), c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_ONonce(v_NB), c_Event_Oused(v_evs2)) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_ONonce(v_NB), c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2))) -> true__
% 7.60/7.46  	f3(true__, c_Message_Omsg_ONonce(v_NB), c_Message_Oparts(c_Message_Oparts(c_Event_Oknows(c_Message_Oagent_OSpy, v_evs2)))) -> true__
% 7.60/7.46  	f4(c_in(c_Message_Omsg_OCrypt(V_K, V_X), c_Message_Oparts(V_H), tc_Message_Omsg), V_X, V_H) -> true__
% 7.60/7.46  	f4(f3(true__, c_Message_Omsg_OCrypt(Y0, Y1), Y2), Y1, Y2) -> true__
% 7.60/7.46  	f4(true__, V_X, V_H) -> c_in(V_X, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.46  	f5(c_in(V_X, V_H, tc_Message_Omsg), V_X, V_H) -> true__
% 7.60/7.46  	f5(f1(true__, Y0, X1), Y0, c_Event_Oknows(c_Message_Oagent_OSpy, X1)) -> true__
% 7.60/7.47  	f5(f2(true__, Y0, X1), Y0, c_Event_Oused(X1)) -> true__
% 7.60/7.47  	f5(f3(true__, Y0, X1), Y0, c_Message_Oparts(X1)) -> true__
% 7.60/7.47  	f5(true__, V_X, V_H) -> c_in(V_X, c_Message_Oparts(V_H), tc_Message_Omsg)
% 7.60/7.47  	f6(c_in(c_Message_Omsg_ONonce(v_NB), c_Event_Oused(v_evs2), tc_Message_Omsg)) -> true__
% 7.60/7.47  	f6(f2(true__, c_Message_Omsg_ONonce(v_NB), v_evs2)) -> true__
% 7.60/7.47  	f6(true__) -> false__
% 7.60/7.47  	false__ -> true__
% 7.60/7.47  with the LPO induced by
% 7.60/7.47  	v_NA > v_A > c_Public_OshrK > c_Message_Omsg_OAgent > c_Message_Oagent_OServer > v_NB > f5 > f4 > c_in > f3 > c_Message_Omsg_OMPair > f1 > f2 > tc_Message_Omsg > c_Message_Oagent_OSpy > v_B > v_evs2 > c_Message_Omsg_ONonce > f6 > c_Message_Omsg_OCrypt > c_Message_Oparts > c_Event_Oused > tc_Event_Oevent > c_List_Oset > c_Event_Oevent_OSays > c_Event_Oknows > false__ > true__
% 7.60/7.47  
% 7.60/7.47  % SZS output end Proof
% 7.60/7.47  
%------------------------------------------------------------------------------