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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0cn 7782 |
. 2
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2 | 1 | elexi 2701 |
1
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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 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-ext 2122 ax-1cn 7737 ax-icn 7739 ax-addcl 7740 ax-mulcl 7742 ax-i2m1 7749 |
This theorem depends on definitions: df-bi 116 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-v 2691 |
This theorem is referenced by: elnn0 9003 nn0ex 9007 un0mulcl 9035 nn0ssz 9096 nn0ind-raph 9192 ser0f 10319 fser0const 10320 facnn 10505 fac0 10506 prhash2ex 10587 iserge0 11144 sum0 11189 isumz 11190 fisumss 11193 bezoutlemmain 11722 lcmval 11780 dvef 12896 2o01f 13364 |
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