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| Mirrors > Home > ILE Home > Th. List > rpcn | GIF version | ||
| Description: A positive real is a complex number. (Contributed by NM, 11-Nov-2008.) |
| Ref | Expression |
|---|---|
| rpcn | ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpre 9752 | . 2 ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ ℝ) | |
| 2 | 1 | recnd 8072 | 1 ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ ℂ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2167 ℂcc 7894 ℝ+crp 9745 |
| 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 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 ax-resscn 7988 |
| This theorem depends on definitions: df-bi 117 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-rab 2484 df-in 3163 df-ss 3170 df-rp 9746 |
| This theorem is referenced by: rpcnne0 9765 rpcnap0 9766 divge1 9815 sqrtdiv 11224 efgt1p2 11877 efgt1p 11878 pilem1 15099 rpcxp0 15218 rpcxp1 15219 cxprec 15230 rplogbval 15265 rprelogbdiv 15277 |
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