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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 6201 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
2 | eloni 6201 | . 2 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
3 | ordtri1 6224 | . 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 3936 Ord word 6190 Oncon0 6191 |
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 2793 ax-sep 5203 ax-nul 5210 ax-pr 5330 |
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 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-tr 5173 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-ord 6194 df-on 6195 |
This theorem is referenced by: oneqmini 6242 onmindif 6280 onint 7510 onnmin 7518 onmindif2 7527 dfom2 7582 ondif2 8127 oaword 8175 oawordeulem 8180 oaf1o 8189 odi 8205 omeulem1 8208 oeeulem 8227 oeeui 8228 nnmword 8259 domtriord 8663 sdomel 8664 onsdominel 8666 ordunifi 8768 cantnfp1lem3 9143 oemapvali 9147 cantnflem1b 9149 cantnflem1 9152 cnfcom3lem 9166 rankr1clem 9249 rankelb 9253 rankval3b 9255 rankr1a 9265 unbndrank 9271 rankxplim3 9310 cardne 9394 carden2b 9396 cardsdomel 9403 carddom2 9406 harcard 9407 domtri2 9418 infxpenlem 9439 alephord 9501 alephord3 9504 alephle 9514 dfac12k 9573 cflim2 9685 cofsmo 9691 cfsmolem 9692 isf32lem5 9779 pwcfsdom 10005 pwfseqlem3 10082 inar1 10197 om2uzlt2i 13320 sltval2 33163 sltres 33169 nosepssdm 33190 nolt02olem 33198 nolt02o 33199 noetalem3 33219 nocvxminlem 33247 onsuct0 33789 onint1 33797 ontric3g 39908 infordmin 39919 alephiso3 39938 |
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