# SZS status Theorem
# SZS status Theorem
# SZS output start CNFRefutation.
fof(1, conjecture,![X1]:![X2]:((~((p(s(t_bool,X2))|p(s(t_bool,X1))))=>p(s(t_bool,f)))<=>(~(p(s(t_bool,X2)))=>(~(p(s(t_bool,X1)))=>p(s(t_bool,f))))),file('i/f/sat/OR__DUAL', ch4s_sats_ORu_u_DUAL)).
# SZS output end CNFRefutation
