# SZS status Theorem
# SZS status Theorem
# SZS output start CNFRefutation.
fof(1, conjecture,![X1]:![X2]:s(t_h4s_lists_list(X1),h4s_lists_append(s(t_h4s_lists_list(X1),h4s_lists_nil),s(t_h4s_lists_list(X1),X2)))=s(t_h4s_lists_list(X1),X2),file('i/f/rich_list/APPEND__NIL_c1', ch4s_richu_u_lists_APPENDu_u_NILu_c1)).
fof(8, axiom,![X4]:![X2]:s(t_h4s_lists_list(X4),h4s_lists_append(s(t_h4s_lists_list(X4),h4s_lists_nil),s(t_h4s_lists_list(X4),X2)))=s(t_h4s_lists_list(X4),X2),file('i/f/rich_list/APPEND__NIL_c1', ah4s_lists_APPEND0u_c0)).
# SZS output end CNFRefutation
