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| Mirrors > Home > MPE Home > Th. List > ontri1 | Structured version Visualization version GIF version | ||
| Description: A trichotomy law for ordinal numbers. (Contributed by NM, 6-Nov-2003.) |
| Ref | Expression |
|---|---|
| ontri1 | ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eloni 6328 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6328 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6351 | . 2 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
| 4 | 1, 2, 3 | syl2an 597 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2114 ⊆ wss 3902 Ord word 6317 Oncon0 6318 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5242 ax-nul 5252 ax-pr 5378 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ne 2934 df-ral 3053 df-rex 3062 df-rab 3401 df-v 3443 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-tr 5207 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-ord 6321 df-on 6322 |
| This theorem is referenced by: oneqmini 6371 onmindif 6412 onint 7737 onnmin 7745 onmindif2 7754 dfom2 7812 ondif2 8431 oaword 8478 oawordeulem 8483 oaf1o 8492 odi 8508 omeulem1 8511 oeeulem 8531 oeeui 8532 nnmword 8563 cofonr 8604 naddel1 8617 naddss1 8619 domtriord 9055 sdomel 9056 onsdominel 9058 ordunifi 9194 cantnfp1lem3 9593 oemapvali 9597 cantnflem1b 9599 cantnflem1 9602 cnfcom3lem 9616 rankr1clem 9736 rankelb 9740 rankval3b 9742 rankr1a 9752 unbndrank 9758 rankxplim3 9797 cardne 9881 carden2b 9883 cardsdomel 9890 carddom2 9893 harcard 9894 domtri2 9905 infxpenlem 9927 alephord 9989 alephord3 9992 alephle 10002 dfac12k 10062 cflim2 10177 cofsmo 10183 cfsmolem 10184 isf32lem5 10271 pwcfsdom 10498 pwfseqlem3 10575 inar1 10690 om2uzlt2i 13878 ltsval2 27628 ltsres 27634 nosepssdm 27658 nolt02olem 27666 nolt02o 27667 nogt01o 27668 noetasuplem4 27708 noetainflem4 27712 nocvxminlem 27754 madebdaylemlrcut 27899 oncutlt 28264 onnolt 28266 onles 28268 oniso 28271 om2noseqlt2 28300 bdaypw2bnd 28465 bdayfinbndlem1 28467 nummin 35251 vonf1owev 35304 onsuct0 36637 onint1 36645 onmaxnelsup 43532 onsupnmax 43537 onsupuni 43538 oninfint 43545 onsupmaxb 43548 onsupeqnmax 43556 oe0suclim 43586 cantnfresb 43633 cantnf2 43634 tfsconcatfv 43650 tfsnfin 43661 oadif1lem 43688 oadif1 43689 naddwordnexlem4 43710 ontric3g 43830 infordmin 43840 minregex 43842 alephiso3 43867 |
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