# SZS status Theorem
# SZS status Theorem
# SZS output start CNFRefutation.
fof(1, conjecture,![X1]:p(s(t_bool,h4s_lists_null(s(t_h4s_lists_list(X1),h4s_lists_nil)))),file('i/f/list/NULL0_c0', ch4s_lists_NULL0u_c0)).
fof(2, axiom,p(s(t_bool,t)),file('i/f/list/NULL0_c0', aHLu_TRUTH)).
fof(9, axiom,![X1]:s(t_bool,h4s_lists_null(s(t_h4s_lists_list(X1),h4s_lists_nil)))=s(t_bool,t),file('i/f/list/NULL0_c0', ah4s_lists_NULLu_u_DEFu_c0)).
# SZS output end CNFRefutation
