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| Mirrors > Home > ILE Home > Th. List > c0ex | Unicode version | ||
| Description: 0 is a set (common case). (Contributed by David A. Wheeler, 7-Jul-2016.) |
| Ref | Expression |
|---|---|
| c0ex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 8161 |
. 2
| |
| 2 | 1 | elexi 2813 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-ext 2211 ax-1cn 8115 ax-icn 8117 ax-addcl 8118 ax-mulcl 8120 ax-i2m1 8127 |
| This theorem depends on definitions: df-bi 117 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-v 2802 |
| This theorem is referenced by: elnn0 9394 nn0ex 9398 un0mulcl 9426 nn0ssz 9487 nn0ind-raph 9587 ser0f 10786 fser0const 10787 facnn 10979 fac0 10980 prhash2ex 11063 wrdexb 11115 s1rn 11185 eqs1 11195 iserge0 11894 sum0 11939 isumz 11940 fisumss 11943 0bits 12510 bezoutlemmain 12559 lcmval 12625 dvef 15441 plyval 15446 elply2 15449 plyss 15452 elplyd 15455 ply1term 15457 plymullem 15464 plyco 15473 plycj 15475 uspgr1ewopdc 16083 usgr2v1e2w 16085 wlkl1loop 16155 2wlklem 16171 clwwlkn2 16216 2o01f 16529 iswomni0 16591 |
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