Theorem an3lr ≪ | index | src | ≫

theorem an3lr (a b c d e: wff): $ a /\ b /\ c /\ d /\ e -> b $;

Step	Hyp	Ref	Expression
1		anllr	a /\ b /\ c /\ d -> b
2	1	anwl	a /\ b /\ c /\ d /\ e -> b

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp)