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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 6337 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6337 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6360 | . 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 3903 Ord word 6326 Oncon0 6327 |
| 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 5245 ax-pr 5381 |
| 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 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-tr 5208 df-eprel 5534 df-po 5542 df-so 5543 df-fr 5587 df-we 5589 df-ord 6330 df-on 6331 |
| This theorem is referenced by: oneqmini 6380 onmindif 6421 onint 7747 onnmin 7755 onmindif2 7764 dfom2 7822 ondif2 8441 oaword 8488 oawordeulem 8493 oaf1o 8502 odi 8518 omeulem1 8521 oeeulem 8541 oeeui 8542 nnmword 8573 cofonr 8614 naddel1 8627 naddss1 8629 domtriord 9065 sdomel 9066 onsdominel 9068 ordunifi 9204 cantnfp1lem3 9603 oemapvali 9607 cantnflem1b 9609 cantnflem1 9612 cnfcom3lem 9626 rankr1clem 9746 rankelb 9750 rankval3b 9752 rankr1a 9762 unbndrank 9768 rankxplim3 9807 cardne 9891 carden2b 9893 cardsdomel 9900 carddom2 9903 harcard 9904 domtri2 9915 infxpenlem 9937 alephord 9999 alephord3 10002 alephle 10012 dfac12k 10072 cflim2 10187 cofsmo 10193 cfsmolem 10194 isf32lem5 10281 pwcfsdom 10508 pwfseqlem3 10585 inar1 10700 om2uzlt2i 13888 ltsval2 27641 ltsres 27647 nosepssdm 27671 nolt02olem 27679 nolt02o 27680 nogt01o 27681 noetasuplem4 27721 noetainflem4 27725 nocvxminlem 27767 madebdaylemlrcut 27912 oncutlt 28277 onnolt 28279 onles 28281 oniso 28284 om2noseqlt2 28313 bdaypw2bnd 28478 bdayfinbndlem1 28480 nummin 35276 vonf1owev 35330 onsuct0 36663 onint1 36671 onmaxnelsup 43609 onsupnmax 43614 onsupuni 43615 oninfint 43622 onsupmaxb 43625 onsupeqnmax 43633 oe0suclim 43663 cantnfresb 43710 cantnf2 43711 tfsconcatfv 43727 tfsnfin 43738 oadif1lem 43765 oadif1 43766 naddwordnexlem4 43787 ontric3g 43907 infordmin 43917 minregex 43919 alephiso3 43944 |
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