| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > nnord | Structured version Visualization version GIF version | ||
| Description: A natural number is ordinal. (Contributed by NM, 17-Oct-1995.) |
| Ref | Expression |
|---|---|
| nnord | ⊢ (𝐴 ∈ ω → Ord 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnon 7854 | . 2 ⊢ (𝐴 ∈ ω → 𝐴 ∈ On) | |
| 2 | eloni 6358 | . 2 ⊢ (𝐴 ∈ On → Ord 𝐴) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝐴 ∈ ω → Ord 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2144 Ord word 6347 Oncon0 6348 ωcom 7848 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-ext 2736 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-tru 1565 df-ex 1802 df-sb 2093 df-clab 2743 df-cleq 2756 df-clel 2839 df-ral 3079 df-rab 3417 df-v 3458 df-ss 3923 df-uni 4868 df-tr 5210 df-po 5557 df-so 5558 df-fr 5602 df-we 5604 df-ord 6351 df-on 6352 df-om 7849 |
| This theorem is referenced by: nnlim 7862 nnsuc 7866 omsucne 7867 omun 7870 nnaordi 8590 nnaord 8591 nnaword 8599 nnmord 8604 nnmwordi 8607 nnawordex 8609 nnaordex2 8611 omsmo 8630 eldifsucnn 8636 enrefnn 9029 pssnn 9139 unfi 9141 phplem2 9175 php 9177 php4 9180 nndomog 9183 onomeneq 9184 ominf 9210 isinf 9211 dif1ennnALT 9223 findcard3 9229 unblem1 9238 isfinite2 9244 unfilem1 9251 inf3lem5 9589 inf3lem6 9590 cantnfp1lem2 9636 cantnfp1lem3 9637 ttrcltr 9673 ttrclss 9677 dmttrcl 9678 rnttrcl 9679 ttrclselem2 9683 dif1card 9968 nnadju 10156 pwsdompw 10161 ackbij1lem5 10181 ackbij1lem14 10190 ackbij1lem16 10192 ackbij1b 10196 ackbij2 10200 sornom 10236 infpssrlem4 10265 infpssrlem5 10266 fin23lem26 10284 fin23lem23 10285 isf32lem2 10313 isf32lem3 10314 isf32lem4 10315 domtriomlem 10401 axdc3lem2 10410 axdc3lem4 10412 canthp1lem2 10613 elni2 10837 piord 10840 addnidpi 10861 indpi 10867 om2uzf1oi 13968 fzennn 13983 hashp1i 14418 om2noseqf1o 28396 bnj529 35039 bnj1098 35081 bnj570 35202 bnj594 35209 bnj580 35210 bnj967 35242 bnj1001 35256 bnj1053 35273 bnj1071 35274 fineqvnttrclselem2 35422 fineqvnttrclselem3 35423 nnuni 36082 hfun 36533 finminlem 36683 mh-inf3f1 36906 finxpsuclem 37896 finxpsuc 37897 wepwso 43625 dflim5 43911 |
| Copyright terms: Public domain | W3C validator |