theorem nfeq2 (a: nat) {x: nat} (b: nat x): $ FN/ x b $ > $ F/ x a = b $;
| Step | Hyp | Ref | Expression |
|---|
| 1 |
|
nfnv |
FN/ x a |
| 2 |
|
hyp h |
FN/ x b |
| 3 |
1, 2 |
nf_eq |
F/ x 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)