| 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 8982 | . 2 ⊢ (𝐴 ∈ On → 𝐴 ≈ 𝐴) | |
| 2 | isnumi 9933 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐴 ≈ 𝐴) → 𝐴 ∈ dom card) | |
| 3 | 1, 2 | mpdan 699 | 1 ⊢ (𝐴 ∈ On → 𝐴 ∈ dom card) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 class class class wbr 5110 dom cdm 5663 Oncon0 6362 ≈ cen 8941 cardccrd 9922 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-int 4914 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-ord 6365 df-on 6366 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-en 8945 df-card 9926 |
| This theorem is referenced by: oncardval 9942 oncardid 9943 cardnn 9950 iscard 9962 carduni 9968 nnsdomel 9977 harsdom 9982 harsucnn 9985 pm54.43lem 9987 infxpenlem 9998 infxpidm2 10002 onssnum 10025 alephnbtwn 10056 alephnbtwn2 10057 alephordilem1 10058 alephord2 10061 alephsdom 10071 cardaleph 10074 infenaleph 10076 alephinit 10080 iunfictbso 10099 ficardun2 10186 pwsdompw 10187 infunsdom1 10196 ackbij2 10226 cfflb 10244 sdom2en01 10287 fin23lem22 10312 iunctb 10560 alephadd 10563 alephmul 10564 alephexp1 10565 alephsuc3 10566 canthp1lem2 10639 pwfseqlem4a 10647 pwfseqlem4 10648 pwfseqlem5 10649 gchaleph 10657 gchaleph2 10658 hargch 10659 cygctb 19963 ttac 43746 numinfctb 43813 isnumbasgrplem2 43814 isnumbasabl 43816 iscard4 44242 minregex2 44244 harval3 44247 harval3on 44248 aleph1min 44266 |
| Copyright terms: Public domain | W3C validator |