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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 8912 | . 2 ⊢ 5 ∈ ℝ | |
2 | 1 | recni 7890 | 1 ⊢ 5 ∈ ℂ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2128 ℂcc 7730 5c5 8887 |
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 7824 ax-1re 7826 ax-addrcl 7829 |
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 8892 df-3 8893 df-4 8894 df-5 8895 |
This theorem is referenced by: 6m1e5 8956 5p2e7 8979 5p3e8 8980 5p4e9 8981 5p5e10 9365 5t2e10 9394 5recm6rec 9438 ef01bndlem 11653 ex-fac 13304 |
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