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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 6371 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6371 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6395 | . 2 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
| 4 | 1, 2, 3 | syl2an 607 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 400 ∈ wcel 2149 ⊆ wss 3911 Ord word 6360 Oncon0 6361 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 ax-sep 5259 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-ne 2965 df-ral 3086 df-rex 3096 df-rab 3423 df-v 3463 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5112 df-opab 5176 df-tr 5221 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-ord 6364 df-on 6365 |
| This theorem is referenced by: oneqmini 6415 onmindif 6456 onint 7789 onnmin 7797 onmindif2 7806 dfom2 7864 ondif2 8487 oaword 8534 oawordeulem 8539 oaf1o 8548 odi 8564 omeulem1 8567 oeeulem 8587 oeeui 8588 nnmword 8619 cofonr 8660 naddel1 8674 naddss1 8676 domtriord 9111 sdomel 9112 onsdominel 9114 ordunifi 9250 cantnfp1lem3 9649 oemapvali 9653 cantnflem1b 9655 cantnflem1 9658 cnfcom3lem 9672 rankr1clem 9792 rankelb 9796 rankval3b 9798 rankr1a 9808 unbndrank 9814 rankxplim3 9853 cardne 9951 carden2b 9953 cardsdomel 9960 carddom2 9963 harcard 9964 domtri2 9975 infxpenlem 9997 alephord 10059 alephord3 10062 alephle 10072 dfac12k 10131 cflim2 10247 cofsmo 10253 cfsmolem 10254 isf32lem5 10341 pwcfsdom 10568 pwfseqlem3 10645 inar1 10760 om2uzlt2i 13987 ltsval2 27786 ltsres 27792 nosepssdm 27816 nolt02olem 27824 nolt02o 27825 nogt01o 27826 noetasuplem4 27866 noetainflem4 27870 nocvxminlem 27913 madebdaylemlrcut 28058 oncutlt 28423 onnolt 28425 onles 28427 oniso 28430 om2noseqlt2 28459 bdaypw2bnd 28624 bdayfinbndlem1 28626 nummin 35427 vonf1wev 35525 vonf1owevOLD 35527 onsuct0 36875 onint1 36883 onmaxnelsup 43877 onsupnmax 43882 onsupuni 43883 oninfint 43890 onsupmaxb 43893 onsupeqnmax 43901 oe0suclim 43931 cantnfresb 43978 cantnf2 43979 tfsconcatfv 43995 tfsnfin 44006 oadif1lem 44033 oadif1 44034 naddwordnexlem4 44055 ontric3g 44175 infordmin 44185 minregex 44187 alephiso3 44212 hashnnltb 45659 |
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