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| Description: Omega is ordinal. Theorem 7.32 of [TakeutiZaring] p. 43. |
| Ref | Expression |
|---|---|
| ordom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dftr2 2043 |
. . 3
| |
| 2 | ordelord 2221 |
. . . . . . . 8
| |
| 3 | nnord 2381 |
. . . . . . . 8
| |
| 4 | 2, 3 | sylan 343 |
. . . . . . 7
|
| 5 | 4 | ancoms 334 |
. . . . . 6
|
| 6 | trel 2048 |
. . . . . . . . . . . . 13
| |
| 7 | 6 | exp3a 292 |
. . . . . . . . . . . 12
|
| 8 | 7 | com12 13 |
. . . . . . . . . . 11
|
| 9 | limord 2283 |
. . . . . . . . . . . 12
| |
| 10 | ordtr 2213 |
. . . . . . . . . . . 12
| |
| 11 | 9, 10 | syl 12 |
. . . . . . . . . . 11
|
| 12 | 8, 11 | syl5 22 |
. . . . . . . . . 10
|
| 13 | 12 | a2d 15 |
. . . . . . . . 9
|
| 14 | 13 | 19.20dv 946 |
. . . . . . . 8
|
| 15 | visset 1350 |
. . . . . . . . . 10
| |
| 16 | 15 | elom 2375 |
. . . . . . . . 9
|
| 17 | 16 | pm3.27bd 263 |
. . . . . . . 8
|
| 18 | 14, 17 | syl5 22 |
. . . . . . 7
|
| 19 | 18 | imp 277 |
. . . . . 6
|
| 20 | 5, 19 | jca 236 |
. . . . 5
|
| 21 | visset 1350 |
. . . . . 6
| |
| 22 | 21 | elom 2375 |
. . . . 5
|
| 23 | 20, 22 | sylibr 175 |
. . . 4
|
| 24 | 23 | ax-gen 677 |
. . 3
|
| 25 | 1, 24 | mpgbir 686 |
. 2
|
| 26 | omsson 2377 |
. 2
| |
| 27 | ordon 2238 |
. 2
| |
| 28 | trssord 2216 |
. 2
| |
| 29 | 25, 26, 27, 28 | mp3an 642 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: elnn 2383 omon 2384 limom 2387 peano5 2394 ssnlim 2407 nnarcl 3174 onomeneq 3414 ominf 3423 omsdomnn 3424 alephgeom 3687 iscard3 3693 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-3an 583 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 df-ral 1205 df-rex 1206 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-tp 1814 df-op 1815 df-uni 1920 df-tr 2042 df-br 2063 df-opab 2098 df-eprel 2122 df-po 2128 df-so 2138 df-fr 2169 df-we 2186 df-ord 2202 df-on 2203 df-lim 2204 df-om 2373 |