Step |
Hyp |
Ref |
Expression |
1 |
|
elfzoel1 |
|
2 |
|
uzid |
|
3 |
|
peano2uz |
|
4 |
|
fzoss1 |
|
5 |
1 2 3 4
|
4syl |
|
6 |
|
1z |
|
7 |
|
fzoaddel |
|
8 |
6 7
|
mpan2 |
|
9 |
5 8
|
sseldd |
|
10 |
|
elfzoel2 |
|
11 |
|
elfzolt3 |
|
12 |
|
zre |
|
13 |
|
zre |
|
14 |
|
ltle |
|
15 |
12 13 14
|
syl2an |
|
16 |
1 10 15
|
syl2anc |
|
17 |
11 16
|
mpd |
|
18 |
|
eluz2 |
|
19 |
1 10 17 18
|
syl3anbrc |
|
20 |
|
fzosplitsni |
|
21 |
19 20
|
syl |
|
22 |
9 21
|
mpbid |
|