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Mirrors > Home > ILE Home > Th. List > 3cn | GIF version |
Description: The number 3 is a complex number. (Contributed by FL, 17-Oct-2010.) |
Ref | Expression |
---|---|
3cn | ⊢ 3 ∈ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3re 8794 | . 2 ⊢ 3 ∈ ℝ | |
2 | 1 | recni 7778 | 1 ⊢ 3 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1480 ℂcc 7618 3c3 8772 |
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 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-resscn 7712 ax-1re 7714 ax-addrcl 7717 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-in 3077 df-ss 3084 df-2 8779 df-3 8780 |
This theorem is referenced by: 3ex 8796 3m1e2 8840 4m1e3 8841 3p2e5 8861 3p3e6 8862 4p4e8 8865 5p4e9 8868 3t1e3 8875 3t2e6 8876 3t3e9 8877 8th4div3 8939 halfpm6th 8940 6p4e10 9253 9t8e72 9309 halfthird 9324 fzo0to42pr 9997 sq3 10389 expnass 10398 fac3 10478 4bc3eq4 10519 ef01bndlem 11463 sin01bnd 11464 cos01bnd 11465 cos1bnd 11466 cos2bnd 11467 cos01gt0 11469 3dvdsdec 11562 3dvds2dec 11563 3lcm2e6woprm 11767 cosq23lt0 12914 tangtx 12919 sincos6thpi 12923 sincos3rdpi 12924 pigt3 12925 ex-exp 12939 ex-dvds 12942 ex-gcd 12943 |
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