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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 9384 | . 2 ⊢ 5 ∈ ℝ | |
| 2 | 1 | recni 8338 | 1 ⊢ 5 ∈ ℂ |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 ℂcc 8177 5c5 9359 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8271 ax-1re 8273 ax-addrcl 8276 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-2 9364 df-3 9365 df-4 9366 df-5 9367 |
| This theorem is used by: 6m1e5 9428 5p2e7 9452 5p3e8 9453 5p4e9 9454 5p5e10 9849 5t2e10 9878 5recm6rec 9922 ef01bndlem 12525 5ndvds3 12703 5ndvds6 12704 dec5dvds 13193 dec5nprm 13195 2exp11 13217 2exp16 13218 log2ublem3 16091 log2ublog2 16092 bclbnd 16127 lgsdir2lem1 16159 2lgslem3c 16226 2lgsoddprmlem3d 16241 ex-fac 16754 |
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