Theorem anrl ≪ | index | src | ≫

theorem anrl (a b c: wff): $ a /\ (b /\ c) -> b $;

Step	Hyp	Ref	Expression
1		anl	b /\ c -> b
2	1	anwr	a /\ (b /\ c) -> b

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp)