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Theorem rpcn 9902
Description: A positive real is a complex number. (Contributed by NM, 11-Nov-2008.)
Assertion
Ref Expression
rpcn (𝐴 ∈ ℝ+𝐴 ∈ ℂ)

Proof of Theorem rpcn
StepHypRef Expression
1 rpre 9900 . 2 (𝐴 ∈ ℝ+𝐴 ∈ ℝ)
21recnd 8213 1 (𝐴 ∈ ℝ+𝐴 ∈ ℂ)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2201  cc 8035  +crp 9893
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-resscn 8129
This theorem depends on definitions:  df-bi 117  df-nf 1509  df-sb 1810  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-rab 2518  df-in 3205  df-ss 3212  df-rp 9894
This theorem is referenced by:  rpcnne0  9913  rpcnap0  9914  divge1  9963  sqrtdiv  11625  efgt1p2  12279  efgt1p  12280  pilem1  15532  rpcxp0  15651  rpcxp1  15652  cxprec  15663  rplogbval  15698  rprelogbdiv  15710
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