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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 8901 | . 2 ⊢ 3 ∈ ℝ | |
2 | 1 | recni 7884 | 1 ⊢ 3 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2128 ℂcc 7724 3c3 8879 |
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 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-11 1486 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2139 ax-resscn 7818 ax-1re 7820 ax-addrcl 7823 |
This theorem depends on definitions: df-bi 116 df-nf 1441 df-sb 1743 df-clab 2144 df-cleq 2150 df-clel 2153 df-in 3108 df-ss 3115 df-2 8886 df-3 8887 |
This theorem is referenced by: 3ex 8903 3m1e2 8947 4m1e3 8948 3p2e5 8968 3p3e6 8969 4p4e8 8972 5p4e9 8975 3t1e3 8982 3t2e6 8983 3t3e9 8984 8th4div3 9046 halfpm6th 9047 6p4e10 9360 9t8e72 9416 halfthird 9431 fzo0to42pr 10112 sq3 10508 expnass 10517 fac3 10599 4bc3eq4 10640 ef01bndlem 11646 sin01bnd 11647 cos01bnd 11648 cos1bnd 11649 cos2bnd 11650 cos01gt0 11652 3dvdsdec 11748 3dvds2dec 11749 3lcm2e6woprm 11954 cosq23lt0 13125 tangtx 13130 sincos6thpi 13134 sincos3rdpi 13135 pigt3 13136 binom4 13267 ex-exp 13274 ex-dvds 13277 ex-gcd 13278 |
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