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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 6329 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6329 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6352 | . 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 3890 Ord word 6318 Oncon0 6319 |
| 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 5232 ax-pr 5372 |
| 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 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-tr 5194 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-we 5581 df-ord 6322 df-on 6323 |
| This theorem is referenced by: oneqmini 6372 onmindif 6413 onint 7739 onnmin 7747 onmindif2 7756 dfom2 7814 ondif2 8432 oaword 8479 oawordeulem 8484 oaf1o 8493 odi 8509 omeulem1 8512 oeeulem 8532 oeeui 8533 nnmword 8564 cofonr 8605 naddel1 8618 naddss1 8620 domtriord 9056 sdomel 9057 onsdominel 9059 ordunifi 9195 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 27638 ltsres 27644 nosepssdm 27668 nolt02olem 27676 nolt02o 27677 nogt01o 27678 noetasuplem4 27718 noetainflem4 27722 nocvxminlem 27764 madebdaylemlrcut 27909 oncutlt 28274 onnolt 28276 onles 28278 oniso 28281 om2noseqlt2 28310 bdaypw2bnd 28475 bdayfinbndlem1 28477 nummin 35256 vonf1owev 35310 onsuct0 36643 onint1 36651 onmaxnelsup 43675 onsupnmax 43680 onsupuni 43681 oninfint 43688 onsupmaxb 43691 onsupeqnmax 43699 oe0suclim 43729 cantnfresb 43776 cantnf2 43777 tfsconcatfv 43793 tfsnfin 43804 oadif1lem 43831 oadif1 43832 naddwordnexlem4 43853 ontric3g 43973 infordmin 43983 minregex 43985 alephiso3 44010 |
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