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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 9251 | . 2 ⊢ 𝐴 ∈ ℝ |
| 3 | 2 | recni 8291 | 1 ⊢ 𝐴 ∈ ℂ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2205 ℂcc 8130 ℕcn 9242 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 ax-sep 4230 ax-cnex 8223 ax-resscn 8224 ax-1re 8226 ax-addrcl 8229 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-v 2817 df-in 3219 df-ss 3226 df-int 3952 df-inn 9243 |
| This theorem is referenced by: 9p1e10 9717 numnncl2 9737 dec10p 9757 3dec 11084 4bc2eq6 11145 ef01bndlem 12450 3dvds 12558 pockthi 13064 dec5nprm 13120 dec2nprm 13121 modxai 13122 modxp1i 13124 modsubi 13125 ballotfilem2 13153 ballotfilemfmpn 13159 |
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