并列题名：Chaplygin theorem Chaplygin theorem 并列题名：Jacobi theorem 并列题名：Artin theorem 并列题名：Hadwiger theorem 并列题名：Pythagorean theorem 并列题名：Leibniz theorem 并列题名：Selberg theorem 并列题名：Abel-Ruffini theorem 并列题名：Minkowski theorem