Theorem al2imi ≪ | index | src | ≫

theorem al2imi {x: nat} (a b c: wff x):
  $ a -> b -> c $ >
  $ A. x a -> A. x b -> A. x c $;

Step	Hyp	Ref	Expression
1		alim	A. x (b -> c) -> A. x b -> A. x c
2		hyp h	a -> b -> c
3	2	alimi	A. x a -> A. x (b -> c)
4	1, 3	syl	A. x a -> A. x b -> A. x c

Axiom use

axs_prop_calc (ax_1, ax_2, ax_mp), axs_pred_calc (ax_gen, ax_4)