# SZS status Theorem
# SZS status Theorem
# SZS output start CNFRefutation.
fof(1, conjecture,![X1]:![X2]:(s(t_fun(X1,t_bool),h4s_predu_u_sets_empty)=s(t_fun(X1,t_bool),h4s_predu_u_sets_bigunion(s(t_fun(t_fun(X1,t_bool),t_bool),X2)))<=>(s(t_fun(t_fun(X1,t_bool),t_bool),X2)=s(t_fun(t_fun(X1,t_bool),t_bool),h4s_predu_u_sets_empty)|s(t_fun(t_fun(X1,t_bool),t_bool),X2)=s(t_fun(t_fun(X1,t_bool),t_bool),h4s_predu_u_sets_insert(s(t_fun(X1,t_bool),h4s_predu_u_sets_empty),s(t_fun(t_fun(X1,t_bool),t_bool),h4s_predu_u_sets_empty))))),file('i/f/pred_set/BIGUNION__EQ__EMPTY_c1', ch4s_predu_u_sets_BIGUNIONu_u_EQu_u_EMPTYu_c1)).
fof(55, axiom,![X1]:![X2]:(s(t_fun(X1,t_bool),h4s_predu_u_sets_bigunion(s(t_fun(t_fun(X1,t_bool),t_bool),X2)))=s(t_fun(X1,t_bool),h4s_predu_u_sets_empty)<=>(s(t_fun(t_fun(X1,t_bool),t_bool),X2)=s(t_fun(t_fun(X1,t_bool),t_bool),h4s_predu_u_sets_empty)|s(t_fun(t_fun(X1,t_bool),t_bool),X2)=s(t_fun(t_fun(X1,t_bool),t_bool),h4s_predu_u_sets_insert(s(t_fun(X1,t_bool),h4s_predu_u_sets_empty),s(t_fun(t_fun(X1,t_bool),t_bool),h4s_predu_u_sets_empty))))),file('i/f/pred_set/BIGUNION__EQ__EMPTY_c1', ah4s_predu_u_sets_BIGUNIONu_u_EQu_u_EMPTYu_c0)).
# SZS output end CNFRefutation
