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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 8818 | . 2 ⊢ 3 ∈ ℝ | |
2 | 1 | recni 7802 | 1 ⊢ 3 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1481 ℂcc 7642 3c3 8796 |
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-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-11 1485 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-resscn 7736 ax-1re 7738 ax-addrcl 7741 |
This theorem depends on definitions: df-bi 116 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-in 3082 df-ss 3089 df-2 8803 df-3 8804 |
This theorem is referenced by: 3ex 8820 3m1e2 8864 4m1e3 8865 3p2e5 8885 3p3e6 8886 4p4e8 8889 5p4e9 8892 3t1e3 8899 3t2e6 8900 3t3e9 8901 8th4div3 8963 halfpm6th 8964 6p4e10 9277 9t8e72 9333 halfthird 9348 fzo0to42pr 10028 sq3 10420 expnass 10429 fac3 10510 4bc3eq4 10551 ef01bndlem 11499 sin01bnd 11500 cos01bnd 11501 cos1bnd 11502 cos2bnd 11503 cos01gt0 11505 3dvdsdec 11598 3dvds2dec 11599 3lcm2e6woprm 11803 cosq23lt0 12962 tangtx 12967 sincos6thpi 12971 sincos3rdpi 12972 pigt3 12973 ex-exp 13110 ex-dvds 13113 ex-gcd 13114 |
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