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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 9569 nn0ex 9573 un0mulcl 9601 fcdmnn0supp 9619 fcdmnn0fsupp 9620 fcdmnn0suppg 9621 fcdmnn0fsuppg 9622 nn0ssz 9666 nn0ind-raph 9767 ser0f 10984 fser0const 10985 facnn 11179 fac0 11180 prhash2ex 11264 wrdexb 11330 s1rn 11400 eqs1 11410 iserge0 12125 sum0 12171 isumz 12172 fisumss 12175 0bits 12742 bezoutlemmain 12791 lcmval 12857 dvef 15877 plyval 15882 elply2 15885 plyss 15888 elplyd 15891 ply1term 15893 plymullem 15900 plyco 15909 plycj 15911 uspgr1ewopdc 16583 usgr2v1e2w 16585 wlkl1loop 16697 2wlklem 16715 clwwlkn2 16760 eulerpathprum 16819 konigsberglem4 16830 konigsberglem5 16831 2o01f 17122 iswomni0 17199 |
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