| Step |
Hyp |
Ref |
Expression |
| 1 |
|
pclem.1 |
|
| 2 |
|
pclem.2 |
|
| 3 |
1 2
|
pcprecl |
|
| 4 |
3
|
simpld |
|
| 5 |
|
nn0re |
|
| 6 |
|
ltp1 |
|
| 7 |
|
peano2re |
|
| 8 |
|
ltnle |
|
| 9 |
7 8
|
mpdan |
|
| 10 |
6 9
|
mpbid |
|
| 11 |
4 5 10
|
3syl |
|
| 12 |
1
|
pclem |
|
| 13 |
|
peano2nn0 |
|
| 14 |
|
oveq2 |
|
| 15 |
14
|
breq1d |
|
| 16 |
|
oveq2 |
|
| 17 |
16
|
breq1d |
|
| 18 |
17
|
cbvrabv |
|
| 19 |
1 18
|
eqtri |
|
| 20 |
15 19
|
elrab2 |
|
| 21 |
20
|
simplbi2 |
|
| 22 |
4 13 21
|
3syl |
|
| 23 |
|
suprzub |
|
| 24 |
23 2
|
breqtrrdi |
|
| 25 |
24
|
3expia |
|
| 26 |
25
|
3adant2 |
|
| 27 |
12 22 26
|
sylsyld |
|
| 28 |
11 27
|
mtod |
|