| Mathbox for Richard Penner |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > onnoxp | Structured version Visualization version GIF version | ||
| Description: Every ordinal maps to a surreal number. (Contributed by RP, 21-Sep-2023.) |
| Ref | Expression |
|---|---|
| onnoxp | ⊢ (𝐴 ∈ On → (𝐴 × {2o}) ∈ No) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2oex 8493 | . . 3 ⊢ 2o ∈ V | |
| 2 | 1 | prid2 4720 | . 2 ⊢ 2o ∈ {1o, 2o} |
| 3 | onnoxpg 44537 | . 2 ⊢ ((𝐴 ∈ On ∧ 2o ∈ {1o, 2o}) → (𝐴 × {2o}) ∈ No) | |
| 4 | 2, 3 | mpan2 704 | 1 ⊢ (𝐴 ∈ On → (𝐴 × {2o}) ∈ No) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 {csn 4584 {cpr 4586 × cxp 5648 Oncon0 6364 1oc1o 8474 2oc2o 8475 Nocsur 28004 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-pow 5326 ax-pr 5390 ax-un 7753 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-suc 6370 df-fun 6543 df-fn 6544 df-f 6545 df-1o 8481 df-2o 8482 df-no 28007 |
| This theorem is used by: onnoxpi 44542 |
| Copyright terms: Public domain | W3C validator |