theorem greceq4d (_G: wff) (z: nat) (K F: set) (_n1 _n2 k: nat):
$ _G -> _n1 = _n2 $ >
$ _G -> grec z K F _n1 k = grec z K F _n2 k $;
| Step | Hyp | Ref | Expression |
|---|
| 1 |
|
eqidd |
_G -> z = z |
| 2 |
|
eqsidd |
_G -> K == K |
| 3 |
|
eqsidd |
_G -> F == F |
| 4 |
|
hyp _h |
_G -> _n1 = _n2 |
| 5 |
|
eqidd |
_G -> k = k |
| 6 |
1, 2, 3, 4, 5 |
greceqd |
_G -> grec z K F _n1 k = grec z K F _n2 k |
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)