Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > onenon | Structured version Visualization version GIF version |
Description: Every ordinal number is numerable. (Contributed by Mario Carneiro, 29-Apr-2015.) |
Ref | Expression |
---|---|
onenon | ⊢ (𝐴 ∈ On → 𝐴 ∈ dom card) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | enrefg 8638 | . 2 ⊢ (𝐴 ∈ On → 𝐴 ≈ 𝐴) | |
2 | isnumi 9527 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐴 ≈ 𝐴) → 𝐴 ∈ dom card) | |
3 | 1, 2 | mpdan 687 | 1 ⊢ (𝐴 ∈ On → 𝐴 ∈ dom card) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2112 class class class wbr 5039 dom cdm 5536 Oncon0 6191 ≈ cen 8601 cardccrd 9516 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-ral 3056 df-rex 3057 df-rab 3060 df-v 3400 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-int 4846 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-ord 6194 df-on 6195 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-en 8605 df-card 9520 |
This theorem is referenced by: oncardval 9536 oncardid 9537 cardnn 9544 iscard 9556 carduni 9562 nnsdomel 9571 harsdom 9576 harsucnn 9579 pm54.43lem 9581 infxpenlem 9592 infxpidm2 9596 onssnum 9619 alephnbtwn 9650 alephnbtwn2 9651 alephordilem1 9652 alephord2 9655 alephsdom 9665 cardaleph 9668 infenaleph 9670 alephinit 9674 iunfictbso 9693 ficardun2 9781 ficardun2OLD 9782 pwsdompw 9783 infunsdom1 9792 ackbij2 9822 cfflb 9838 sdom2en01 9881 fin23lem22 9906 iunctb 10153 alephadd 10156 alephmul 10157 alephexp1 10158 alephsuc3 10159 canthp1lem2 10232 pwfseqlem4a 10240 pwfseqlem4 10241 pwfseqlem5 10242 gchaleph 10250 gchaleph2 10251 hargch 10252 cygctb 19231 ttac 40502 numinfctb 40572 isnumbasgrplem2 40573 isnumbasabl 40575 iscard4 40766 harval3 40769 harval3on 40770 aleph1min 40781 |
Copyright terms: Public domain | W3C validator |