| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: An element of an ordinal class is ordinal. Proposition 7.6 of [TakeutiZaring] p. 36. |
| Ref | Expression |
|---|---|
| ordelord |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleq1 1957 |
. . . . 5
| |
| 2 | 1 | anbi2d 678 |
. . . 4
|
| 3 | ordeq 3664 |
. . . 4
| |
| 4 | 2, 3 | imbi12d 688 |
. . 3
|
| 5 | df-ord 3660 |
. . . 4
| |
| 6 | simpll 448 |
. . . . . . . . 9
| |
| 7 | ordtr 3672 |
. . . . . . . . . . . . 13
| |
| 8 | trel3 3420 |
. . . . . . . . . . . . 13
| |
| 9 | 7, 8 | syl 12 |
. . . . . . . . . . . 12
|
| 10 | 3anrot 863 |
. . . . . . . . . . . . 13
| |
| 11 | 3anass 862 |
. . . . . . . . . . . . 13
| |
| 12 | 10, 11 | bitr3i 192 |
. . . . . . . . . . . 12
|
| 13 | 9, 12 | syl5ibr 224 |
. . . . . . . . . . 11
|
| 14 | 13 | exp3a 405 |
. . . . . . . . . 10
|
| 15 | 14 | imp31 389 |
. . . . . . . . 9
|
| 16 | trel 3418 |
. . . . . . . . . . . . . 14
| |
| 17 | 7, 16 | syl 12 |
. . . . . . . . . . . . 13
|
| 18 | 17 | exp3a 405 |
. . . . . . . . . . . 12
|
| 19 | 18 | com23 36 |
. . . . . . . . . . 11
|
| 20 | 19 | imp31 389 |
. . . . . . . . . 10
|
| 21 | 20 | adantrl 430 |
. . . . . . . . 9
|
| 22 | simplr 449 |
. . . . . . . . 9
| |
| 23 | wetrep 3651 |
. . . . . . . . . 10
| |
| 24 | ordwe 3671 |
. . . . . . . . . 10
| |
| 25 | 23, 24 | sylan 497 |
. . . . . . . . 9
|
| 26 | 6, 15, 21, 22, 25 | syl13anc 1102 |
. . . . . . . 8
|
| 27 | 26 | ex 402 |
. . . . . . 7
|
| 28 | 27 | pm2.43d 79 |
. . . . . 6
|
| 29 | 28 | 19.21aivv 1665 |
. . . . 5
|
| 30 | dftr2 3413 |
. . . . 5
| |
| 31 | 29, 30 | sylibr 217 |
. . . 4
|
| 32 | trss 3421 |
. . . . . . 7
| |
| 33 | 7, 32 | syl 12 |
. . . . . 6
|
| 34 | wess 3645 |
. . . . . . 7
| |
| 35 | 34, 24 | syl5com 63 |
. . . . . 6
|
| 36 | 33, 35 | syld 30 |
. . . . 5
|
| 37 | 36 | imp 377 |
. . . 4
|
| 38 | 5, 31, 37 | sylanbrc 527 |
. . 3
|
| 39 | 4, 38 | vtoclg 2346 |
. 2
|
| 40 | 39 | anabsi7 555 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: tron 3681 ordelon 3682 ordtr2 3708 ordtr2OLD 3709 ssorduniOLD 3871 ordsuc 3895 ordsucss 3899 ordsucelsuc 3902 ordsucelsucOLD 3903 ordunel 3906 limsssuc 3934 ordom 3960 ordomOLD 3961 rdglim2 5157 ordpss 16428 ordintdif 16440 smores 16446 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-3an 860 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-ral 2109 df-rex 2110 df-v 2294 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-uni 3178 df-br 3339 df-opab 3396 df-tr 3412 df-eprel 3583 df-po 3591 df-so 3604 df-fr 3625 df-we 3644 df-ord 3660 |