# SZS status Theorem
# SZS status Theorem
# SZS output start CNFRefutation.
fof(1, conjecture,![X1]:![X2]:s(t_h4s_lists_list(t_h4s_strings_char),h4s_lists_append(s(t_h4s_lists_list(t_h4s_strings_char),X2),s(t_h4s_lists_list(t_h4s_strings_char),X1)))=s(t_h4s_lists_list(t_h4s_strings_char),h4s_lists_append(s(t_h4s_lists_list(t_h4s_strings_char),X2),s(t_h4s_lists_list(t_h4s_strings_char),X1))),file('i/f/string/STRCAT', ch4s_strings_STRCAT)).
# SZS output end CNFRefutation
