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Mirrors > Home > ILE Home > Th. List > 5cn | GIF version |
Description: The number 5 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
5cn | ⊢ 5 ∈ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 5re 8936 | . 2 ⊢ 5 ∈ ℝ | |
2 | 1 | recni 7911 | 1 ⊢ 5 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2136 ℂcc 7751 5c5 8911 |
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 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-11 1494 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-ext 2147 ax-resscn 7845 ax-1re 7847 ax-addrcl 7850 |
This theorem depends on definitions: df-bi 116 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-in 3122 df-ss 3129 df-2 8916 df-3 8917 df-4 8918 df-5 8919 |
This theorem is referenced by: 6m1e5 8980 5p2e7 9003 5p3e8 9004 5p4e9 9005 5p5e10 9392 5t2e10 9421 5recm6rec 9465 ef01bndlem 11697 lgsdir2lem1 13569 ex-fac 13609 |
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