# SZS status Theorem
# SZS status Theorem
# SZS output start CNFRefutation.
fof(1, conjecture,![X1]:![X2]:![X3]:![X4]:(s(t_fun(X2,X1),X4)=s(t_fun(X2,X1),X3)<=>![X5]:s(X1,happ(s(t_fun(X2,X1),X4),s(X2,X5)))=s(X1,happ(s(t_fun(X2,X1),X3),s(X2,X5)))),file('i/f/bool/FUN__EQ__THM', ch4s_bools_FUNu_u_EQu_u_THM)).
fof(5, axiom,![X7]:![X8]:![X4]:![X3]:(![X5]:s(X8,happ(s(t_fun(X7,X8),X4),s(X7,X5)))=s(X8,happ(s(t_fun(X7,X8),X3),s(X7,X5)))=>s(t_fun(X7,X8),X4)=s(t_fun(X7,X8),X3)),file('i/f/bool/FUN__EQ__THM', aHLu_EXT)).
# SZS output end CNFRefutation
