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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 6358 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6358 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6381 | . 2 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
| 4 | 1, 2, 3 | syl2an 605 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 399 ∈ wcel 2144 ⊆ wss 3906 Ord word 6347 Oncon0 6348 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-ext 2736 ax-sep 5248 ax-pr 5392 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-sb 2093 df-clab 2743 df-cleq 2756 df-clel 2839 df-ne 2960 df-ral 3079 df-rex 3089 df-rab 3417 df-v 3458 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5103 df-opab 5165 df-tr 5210 df-eprel 5549 df-po 5557 df-so 5558 df-fr 5602 df-we 5604 df-ord 6351 df-on 6352 |
| This theorem is referenced by: oneqmini 6401 onmindif 6442 onint 7775 onnmin 7783 onmindif2 7792 dfom2 7850 ondif2 8473 oaword 8520 oawordeulem 8525 oaf1o 8534 odi 8550 omeulem1 8553 oeeulem 8573 oeeui 8574 nnmword 8605 cofonr 8646 naddel1 8660 naddss1 8662 domtriord 9097 sdomel 9098 onsdominel 9100 ordunifi 9236 cantnfp1lem3 9637 oemapvali 9641 cantnflem1b 9643 cantnflem1 9646 cnfcom3lem 9660 rankr1clem 9780 rankelb 9784 rankval3b 9786 rankr1a 9796 unbndrank 9802 rankxplim3 9841 cardne 9925 carden2b 9927 cardsdomel 9934 carddom2 9937 harcard 9938 domtri2 9949 infxpenlem 9971 alephord 10033 alephord3 10036 alephle 10046 dfac12k 10106 cflim2 10222 cofsmo 10228 cfsmolem 10229 isf32lem5 10316 pwcfsdom 10543 pwfseqlem3 10620 inar1 10735 om2uzlt2i 13966 ltsval2 27722 ltsres 27728 nosepssdm 27752 nolt02olem 27760 nolt02o 27761 nogt01o 27762 noetasuplem4 27802 noetainflem4 27806 nocvxminlem 27849 madebdaylemlrcut 27994 oncutlt 28359 onnolt 28361 onles 28363 oniso 28366 om2noseqlt2 28395 bdaypw2bnd 28560 bdayfinbndlem1 28562 nummin 35391 vonf1wev 35455 vonf1owevOLD 35457 onsuct0 36806 onint1 36814 onmaxnelsup 43805 onsupnmax 43810 onsupuni 43811 oninfint 43818 onsupmaxb 43821 onsupeqnmax 43829 oe0suclim 43859 cantnfresb 43906 cantnf2 43907 tfsconcatfv 43923 tfsnfin 43934 oadif1lem 43961 oadif1 43962 naddwordnexlem4 43983 ontric3g 44103 infordmin 44113 minregex 44115 alephiso3 44140 |
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