Theorem anwll ≪ | index | src | ≫

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

Step	Hyp	Ref	Expression
1		hyp h	a -> d
2	1	anwl	a /\ b -> d
3	2	anwl	a /\ b /\ c -> d

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp)