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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 6324 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6324 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6347 | . 2 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
| 4 | 1, 2, 3 | syl2an 603 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 397 ∈ wcel 2121 ⊆ wss 3885 Ord word 6313 Oncon0 6314 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 ax-sep 5221 ax-pr 5365 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-ne 2937 df-ral 3056 df-rex 3066 df-rab 3394 df-v 3435 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-br 5076 df-opab 5138 df-tr 5183 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-ord 6317 df-on 6318 |
| This theorem is referenced by: oneqmini 6367 onmindif 6408 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 9596 oemapvali 9600 cantnflem1b 9602 cantnflem1 9605 cnfcom3lem 9619 rankr1clem 9739 rankelb 9743 rankval3b 9745 rankr1a 9755 unbndrank 9761 rankxplim3 9800 cardne 9884 carden2b 9886 cardsdomel 9893 carddom2 9896 harcard 9897 domtri2 9908 infxpenlem 9930 alephord 9992 alephord3 9995 alephle 10005 dfac12k 10065 cflim2 10180 cofsmo 10186 cfsmolem 10187 isf32lem5 10274 pwcfsdom 10501 pwfseqlem3 10578 inar1 10693 om2uzlt2i 13908 ltsval2 27642 ltsres 27648 nosepssdm 27672 nolt02olem 27680 nolt02o 27681 nogt01o 27682 noetasuplem4 27722 noetainflem4 27726 nocvxminlem 27768 madebdaylemlrcut 27913 oncutlt 28278 onnolt 28280 onles 28282 oniso 28285 om2noseqlt2 28314 bdaypw2bnd 28479 bdayfinbndlem1 28481 nummin 35289 vonf1owev 35351 onsuct0 36684 onint1 36692 onmaxnelsup 43683 onsupnmax 43688 onsupuni 43689 oninfint 43696 onsupmaxb 43699 onsupeqnmax 43707 oe0suclim 43737 cantnfresb 43784 cantnf2 43785 tfsconcatfv 43801 tfsnfin 43812 oadif1lem 43839 oadif1 43840 naddwordnexlem4 43861 ontric3g 43981 infordmin 43991 minregex 43993 alephiso3 44018 |
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