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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 9058 | . 2 ⊢ 3 ∈ ℝ | |
2 | 1 | recni 8033 | 1 ⊢ 3 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2164 ℂcc 7872 3c3 9036 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-11 1517 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 ax-resscn 7966 ax-1re 7968 ax-addrcl 7971 |
This theorem depends on definitions: df-bi 117 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-in 3160 df-ss 3167 df-2 9043 df-3 9044 |
This theorem is referenced by: 3ex 9060 3m1e2 9104 4m1e3 9105 3p2e5 9126 3p3e6 9127 4p4e8 9130 5p4e9 9133 3t1e3 9140 3t2e6 9141 3t3e9 9142 8th4div3 9204 halfpm6th 9205 6p4e10 9522 9t8e72 9578 halfthird 9593 fzo0to42pr 10290 sq3 10710 expnass 10719 fac3 10806 4bc3eq4 10847 ef01bndlem 11902 sin01bnd 11903 cos01bnd 11904 cos1bnd 11905 cos2bnd 11906 cos01gt0 11909 3dvdsdec 12009 3dvds2dec 12010 3lcm2e6woprm 12227 cosq23lt0 15009 tangtx 15014 sincos6thpi 15018 sincos3rdpi 15019 pigt3 15020 binom4 15152 lgsdir2lem1 15185 lgsdir2lem5 15189 2lgslem3b 15251 2lgslem3d 15253 2lgsoddprmlem3c 15266 2lgsoddprmlem3d 15267 ex-exp 15289 ex-dvds 15292 ex-gcd 15293 |
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