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Theorem rpcn 9866
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 9864 . 2 (𝐴 ∈ ℝ+𝐴 ∈ ℝ)
21recnd 8183 1 (𝐴 ∈ ℝ+𝐴 ∈ ℂ)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2200  cc 8005  +crp 9857
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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-ext 2211  ax-resscn 8099
This theorem depends on definitions:  df-bi 117  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-rab 2517  df-in 3203  df-ss 3210  df-rp 9858
This theorem is referenced by:  rpcnne0  9877  rpcnap0  9878  divge1  9927  sqrtdiv  11561  efgt1p2  12214  efgt1p  12215  pilem1  15461  rpcxp0  15580  rpcxp1  15581  cxprec  15592  rplogbval  15627  rprelogbdiv  15639
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