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| Mirrors > Home > ILE Home > Th. List > nncni | GIF version | ||
| Description: A positive integer is a complex number. (Contributed by NM, 18-Aug-1999.) |
| Ref | Expression |
|---|---|
| nnre.1 | ⊢ 𝐴 ∈ ℕ |
| Ref | Expression |
|---|---|
| nncni | ⊢ 𝐴 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnre.1 | . . 3 ⊢ 𝐴 ∈ ℕ | |
| 2 | 1 | nnrei 9157 | . 2 ⊢ 𝐴 ∈ ℝ |
| 3 | 2 | recni 8196 | 1 ⊢ 𝐴 ∈ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2201 ℂcc 8035 ℕcn 9148 |
| 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-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2212 ax-sep 4208 ax-cnex 8128 ax-resscn 8129 ax-1re 8131 ax-addrcl 8134 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1810 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ral 2514 df-v 2803 df-in 3205 df-ss 3212 df-int 3930 df-inn 9149 |
| This theorem is referenced by: 9p1e10 9618 numnncl2 9638 dec10p 9658 3dec 10982 4bc2eq6 11042 ef01bndlem 12340 3dvds 12448 pockthi 12954 dec5nprm 13010 dec2nprm 13011 modxai 13012 modxp1i 13014 modsubi 13015 |
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