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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 6203 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
2 | eloni 6203 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
3 | ordtri1 6226 | . 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 208 ∧ wa 398 ∈ wcel 2114 ⊆ wss 3938 Ord word 6192 Oncon0 6193 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-sbc 3775 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-tr 5175 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-ord 6196 df-on 6197 |
This theorem is referenced by: oneqmini 6244 onmindif 6282 onint 7512 onnmin 7520 onmindif2 7529 dfom2 7584 ondif2 8129 oaword 8177 oawordeulem 8182 oaf1o 8191 odi 8207 omeulem1 8210 oeeulem 8229 oeeui 8230 nnmword 8261 domtriord 8665 sdomel 8666 onsdominel 8668 ordunifi 8770 cantnfp1lem3 9145 oemapvali 9149 cantnflem1b 9151 cantnflem1 9154 cnfcom3lem 9168 rankr1clem 9251 rankelb 9255 rankval3b 9257 rankr1a 9267 unbndrank 9273 rankxplim3 9312 cardne 9396 carden2b 9398 cardsdomel 9405 carddom2 9408 harcard 9409 domtri2 9420 infxpenlem 9441 alephord 9503 alephord3 9506 alephle 9516 dfac12k 9575 cflim2 9687 cofsmo 9693 cfsmolem 9694 isf32lem5 9781 pwcfsdom 10007 pwfseqlem3 10084 inar1 10199 om2uzlt2i 13322 sltval2 33165 sltres 33171 nosepssdm 33192 nolt02olem 33200 nolt02o 33201 noetalem3 33221 nocvxminlem 33249 onsuct0 33791 onint1 33799 ontric3g 39895 infordmin 39906 alephiso3 39925 |
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