Theorem gcdeq2 ≪ | index | src | ≫

theorem gcdeq2 (a _b1 _b2: nat): $ _b1 = _b2 -> gcd a _b1 = gcd a _b2 $;

Step	Hyp	Ref	Expression
1		id	_b1 = _b2 -> _b1 = _b2
2	1	gcdeq2d	_b1 = _b2 -> gcd a _b1 = gcd a _b2

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp, itru), axs_pred_calc (ax_gen, ax_4, ax_5, ax_6, ax_7, ax_10, ax_11, ax_12), axs_set (elab, ax_8), axs_the (theid, the0), axs_peano (muleq)