Step |
Hyp |
Ref |
Expression |
1 |
|
ordtypelem.1 |
|
2 |
|
ordtypelem.2 |
|
3 |
|
ordtypelem.3 |
|
4 |
|
ordtypelem.5 |
|
5 |
|
ordtypelem.6 |
|
6 |
|
ordtypelem.7 |
|
7 |
|
ordtypelem.8 |
|
8 |
1 2 3 4 5 6 7
|
ordtypelem2 |
|
9 |
1
|
tfr1a |
|
10 |
9
|
simpri |
|
11 |
|
limord |
|
12 |
10 11
|
ax-mp |
|
13 |
|
ordin |
|
14 |
8 12 13
|
sylancl |
|
15 |
1 2 3 4 5 6 7
|
ordtypelem4 |
|
16 |
15
|
fdmd |
|
17 |
|
ordeq |
|
18 |
16 17
|
syl |
|
19 |
14 18
|
mpbird |
|
20 |
15
|
ffdmd |
|
21 |
19 20
|
jca |
|