Theorem eqsidd ≪ | index | src | ≫

theorem eqsidd (G: wff) (A: set): $ G -> A == A $;

Step	Hyp	Ref	Expression
1		eqsid	A == A
2	1	a1i	G -> A == A

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp), axs_pred_calc (ax_gen)