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| Description: A trichotomy law for ordinal numbers. |
| Ref | Expression |
|---|---|
| ontri1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ordtri1 3693 |
. 2
| |
| 2 | eloni 3667 |
. 2
| |
| 3 | eloni 3667 |
. 2
| |
| 4 | 1, 2, 3 | syl2an 503 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: oneqmini 3714 onmindif 3760 onint 3876 onnmin 3884 onmindif2 3893 dfom2 3951 oaword 5230 oawordeulem 5236 odi 5258 rankr1lem 5784 rankr1 5785 rankr1a 5788 rankel 5791 unbndrank 5794 rankxplim3 5825 cardne 5980 carden 5981 carddom 5987 domtri 5989 sdomel 5999 cardsdomel 6004 ondomcard 6009 cardprc 6013 alephord 6023 alephord3 6026 alephle 6032 om2uzlt2i 7710 sltval2 13997 axdenselem7 14025 nocvxminlem 14028 axfelem8 14038 axfelem9 14039 axfelem12 14042 axfelem15 14045 |
| 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-3or 859 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-pss 2607 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 df-on 3661 |