Theorem nfrlam1 ≪ | index | src | ≫

theorem nfrlam1 {x: nat} (a b: nat x): $ FN/ x a $ > $ FN/ x \. x e. a, b $;

Step	Hyp	Ref	Expression
1		nflam1	FS/ x \ x, b
2		hyp h1	FN/ x a
3	2	nfns	FS/ x a
4	1, 3	nfres	FS/ x (\ x, b) \|` a
5	4	nflower	FN/ x lower ((\ x, b) \|` a)
6	5	conv rlam	FN/ x \. x e. a, b

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp, itru), axs_pred_calc (ax_gen, ax_4, ax_5, ax_6, ax_7, ax_10, ax_11, ax_12), axs_set (elab, ax_8), axs_the (theid, the0), axs_peano (peano2, addeq, muleq)