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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 6333 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 2 | eloni 6333 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
| 3 | ordtri1 6356 | . 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 3889 Ord word 6322 Oncon0 6323 |
| 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 2708 ax-sep 5231 ax-pr 5375 |
| 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 2715 df-cleq 2728 df-clel 2811 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-tr 5193 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-ord 6326 df-on 6327 |
| This theorem is referenced by: oneqmini 6376 onmindif 6417 onint 7744 onnmin 7752 onmindif2 7761 dfom2 7819 ondif2 8437 oaword 8484 oawordeulem 8489 oaf1o 8498 odi 8514 omeulem1 8517 oeeulem 8537 oeeui 8538 nnmword 8569 cofonr 8610 naddel1 8623 naddss1 8625 domtriord 9061 sdomel 9062 onsdominel 9064 ordunifi 9200 cantnfp1lem3 9601 oemapvali 9605 cantnflem1b 9607 cantnflem1 9610 cnfcom3lem 9624 rankr1clem 9744 rankelb 9748 rankval3b 9750 rankr1a 9760 unbndrank 9766 rankxplim3 9805 cardne 9889 carden2b 9891 cardsdomel 9898 carddom2 9901 harcard 9902 domtri2 9913 infxpenlem 9935 alephord 9997 alephord3 10000 alephle 10010 dfac12k 10070 cflim2 10185 cofsmo 10191 cfsmolem 10192 isf32lem5 10279 pwcfsdom 10506 pwfseqlem3 10583 inar1 10698 om2uzlt2i 13913 ltsval2 27620 ltsres 27626 nosepssdm 27650 nolt02olem 27658 nolt02o 27659 nogt01o 27660 noetasuplem4 27700 noetainflem4 27704 nocvxminlem 27746 madebdaylemlrcut 27891 oncutlt 28256 onnolt 28258 onles 28260 oniso 28263 om2noseqlt2 28292 bdaypw2bnd 28457 bdayfinbndlem1 28459 nummin 35236 vonf1owev 35290 onsuct0 36623 onint1 36631 onmaxnelsup 43651 onsupnmax 43656 onsupuni 43657 oninfint 43664 onsupmaxb 43667 onsupeqnmax 43675 oe0suclim 43705 cantnfresb 43752 cantnf2 43753 tfsconcatfv 43769 tfsnfin 43780 oadif1lem 43807 oadif1 43808 naddwordnexlem4 43829 ontric3g 43949 infordmin 43959 minregex 43961 alephiso3 43986 |
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