Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > df1o2 | Structured version Visualization version GIF version |
Description: Expanded value of the ordinal number 1. (Contributed by NM, 4-Nov-2002.) |
Ref | Expression |
---|---|
df1o2 | ⊢ 1𝑜 = {∅} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-1o 7447 | . 2 ⊢ 1𝑜 = suc ∅ | |
2 | suc0 5716 | . 2 ⊢ suc ∅ = {∅} | |
3 | 1, 2 | eqtri 2632 | 1 ⊢ 1𝑜 = {∅} |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 ∅c0 3874 {csn 4125 suc csuc 5642 1𝑜c1o 7440 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-v 3175 df-dif 3543 df-un 3545 df-nul 3875 df-suc 5646 df-1o 7447 |
This theorem is referenced by: df2o3 7460 df2o2 7461 1n0 7462 el1o 7466 dif1o 7467 0we1 7473 oeeui 7569 ensn1 7906 en1 7909 map1 7921 xp1en 7931 map2xp 8015 pwfi 8144 infxpenlem 8719 fseqenlem1 8730 cda1dif 8881 infcda1 8898 pwcda1 8899 infmap2 8923 cflim2 8968 pwxpndom2 9366 pwcdandom 9368 gchxpidm 9370 wuncval2 9448 tsk1 9465 hashen1 13021 hashmap 13082 sylow2alem2 17856 psr1baslem 19376 fvcoe1 19398 coe1f2 19400 coe1sfi 19404 coe1add 19455 coe1mul2lem1 19458 coe1mul2lem2 19459 coe1mul2 19460 coe1tm 19464 ply1coe 19487 evls1rhmlem 19507 evl1sca 19519 evl1var 19521 pf1mpf 19537 pf1ind 19540 mat0dimbas0 20091 mavmul0g 20178 hmph0 21408 tdeglem2 23625 deg1ldg 23656 deg1leb 23659 deg1val 23660 bnj105 30044 bnj96 30189 bnj98 30191 bnj149 30199 rankeq1o 31448 ordcmp 31616 ssoninhaus 31617 onint1 31618 poimirlem28 32607 reheibor 32808 wopprc 36615 pwslnmlem0 36679 pwfi2f1o 36684 lincval0 41998 lco0 42010 linds0 42048 |
Copyright terms: Public domain | W3C validator |