| 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
|
ordtypelem8 |
|
| 9 |
1 2 3 4 5 6 7
|
ordtypelem4 |
|
| 10 |
9
|
frnd |
|
| 11 |
|
simprl |
|
| 12 |
6
|
adantr |
|
| 13 |
7
|
adantr |
|
| 14 |
9
|
ffund |
|
| 15 |
14
|
funfnd |
|
| 16 |
15
|
adantr |
|
| 17 |
1 2 3 4 5 12 13
|
ordtypelem8 |
|
| 18 |
|
isof1o |
|
| 19 |
|
f1of1 |
|
| 20 |
17 18 19
|
3syl |
|
| 21 |
|
simpl |
|
| 22 |
|
seex |
|
| 23 |
7 21 22
|
syl2an |
|
| 24 |
10
|
adantr |
|
| 25 |
|
rexnal |
|
| 26 |
1 2 3 4 5 6 7
|
ordtypelem7 |
|
| 27 |
26
|
ord |
|
| 28 |
27
|
rexlimdva |
|
| 29 |
25 28
|
biimtrrid |
|
| 30 |
29
|
con1d |
|
| 31 |
30
|
impr |
|
| 32 |
|
breq1 |
|
| 33 |
32
|
ralrn |
|
| 34 |
16 33
|
syl |
|
| 35 |
31 34
|
mpbird |
|
| 36 |
|
ssrab |
|
| 37 |
24 35 36
|
sylanbrc |
|
| 38 |
23 37
|
ssexd |
|
| 39 |
|
f1dmex |
|
| 40 |
20 38 39
|
syl2anc |
|
| 41 |
16 40
|
fnexd |
|
| 42 |
1 2 3 4 5 12 13 41
|
ordtypelem9 |
|
| 43 |
|
isof1o |
|
| 44 |
|
f1ofo |
|
| 45 |
|
forn |
|
| 46 |
42 43 44 45
|
4syl |
|
| 47 |
11 46
|
eleqtrrd |
|
| 48 |
47
|
expr |
|
| 49 |
48
|
pm2.18d |
|
| 50 |
10 49
|
eqelssd |
|
| 51 |
|
isoeq5 |
|
| 52 |
50 51
|
syl |
|
| 53 |
8 52
|
mpbid |
|