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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 6326 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6326 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6349 | . 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 3900 Ord word 6315 Oncon0 6316 |
| 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 2707 ax-sep 5240 ax-nul 5250 ax-pr 5376 |
| 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 2714 df-cleq 2727 df-clel 2810 df-ne 2932 df-ral 3051 df-rex 3060 df-rab 3399 df-v 3441 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-pss 3920 df-nul 4285 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-tr 5205 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-we 5578 df-ord 6319 df-on 6320 |
| This theorem is referenced by: oneqmini 6369 onmindif 6410 onint 7735 onnmin 7743 onmindif2 7752 dfom2 7810 ondif2 8429 oaword 8476 oawordeulem 8481 oaf1o 8490 odi 8506 omeulem1 8509 oeeulem 8529 oeeui 8530 nnmword 8561 cofonr 8602 naddel1 8615 naddss1 8617 domtriord 9053 sdomel 9054 onsdominel 9056 ordunifi 9192 cantnfp1lem3 9591 oemapvali 9595 cantnflem1b 9597 cantnflem1 9600 cnfcom3lem 9614 rankr1clem 9734 rankelb 9738 rankval3b 9740 rankr1a 9750 unbndrank 9756 rankxplim3 9795 cardne 9879 carden2b 9881 cardsdomel 9888 carddom2 9891 harcard 9892 domtri2 9903 infxpenlem 9925 alephord 9987 alephord3 9990 alephle 10000 dfac12k 10060 cflim2 10175 cofsmo 10181 cfsmolem 10182 isf32lem5 10269 pwcfsdom 10496 pwfseqlem3 10573 inar1 10688 om2uzlt2i 13876 sltval2 27626 sltres 27632 nosepssdm 27656 nolt02olem 27664 nolt02o 27665 nogt01o 27666 noetasuplem4 27706 noetainflem4 27710 nocvxminlem 27752 madebdaylemlrcut 27879 onscutlt 28243 onnolt 28245 onsle 28247 onsiso 28250 om2noseqlt2 28279 bdaypw2bnd 28442 bdayfinbndlem1 28444 nummin 35228 vonf1owev 35281 onsuct0 36614 onint1 36622 onmaxnelsup 43502 onsupnmax 43507 onsupuni 43508 oninfint 43515 onsupmaxb 43518 onsupeqnmax 43526 oe0suclim 43556 cantnfresb 43603 cantnf2 43604 tfsconcatfv 43620 tfsnfin 43631 oadif1lem 43658 oadif1 43659 naddwordnexlem4 43680 ontric3g 43800 infordmin 43810 minregex 43812 alephiso3 43837 |
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