0029片山博文MZ ◆T6xkBnTXz7B0 垢版 | 大砲2015/01/27(火) 20:07:13.17ID:SJxzPcnV >>26 訂正。ガラケーで入力大変。 (誤) apply Z.mul_sub_distr_l. omega. symmetry. apply Z.mul_sub_distr_r. Qed. (正) apply Z.mul_sub_distr_l. omega. omega. symmetry. apply Z.mul_sub_distr_r. Qed.