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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 8318 |
. 2
| |
| 2 | 1 | elexi 2834 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-ext 2220 ax-1cn 8272 ax-icn 8274 ax-addcl 8275 ax-mulcl 8277 ax-i2m1 8284 |
| This proof depends on definitions: df-bi 117 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-v 2823 |
| This theorem is used by: elnn0 9565 nn0ex 9569 un0mulcl 9597 fcdmnn0supp 9615 fcdmnn0fsupp 9616 fcdmnn0suppg 9617 fcdmnn0fsuppg 9618 nn0ssz 9662 nn0ind-raph 9763 ser0f 10971 fser0const 10972 facnn 11165 fac0 11166 prhash2ex 11250 wrdexb 11316 s1rn 11386 eqs1 11396 iserge0 12109 sum0 12155 isumz 12156 fisumss 12159 0bits 12726 bezoutlemmain 12775 lcmval 12841 dvef 15828 plyval 15833 elply2 15836 plyss 15839 elplyd 15842 ply1term 15844 plymullem 15851 plyco 15860 plycj 15862 uspgr1ewopdc 16485 usgr2v1e2w 16487 wlkl1loop 16599 2wlklem 16617 clwwlkn2 16662 eulerpathprum 16721 konigsberglem4 16732 konigsberglem5 16733 2o01f 17024 iswomni0 17101 |
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