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Theorem rpcn 10080
Description: A positive real is a complex number. (Contributed by NM, 11-Nov-2008.)
Assertion
Ref Expression
rpcn  |-  ( A  e.  RR+  ->  A  e.  CC )

Proof of Theorem rpcn
StepHypRef Expression
1 rpre 10078 . 2  |-  ( A  e.  RR+  ->  A  e.  RR )
21recnd 8360 1  |-  ( A  e.  RR+  ->  A  e.  CC )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    e. wcel 2209   CCcc 8183   RR+crp 10071
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220  ax-resscn 8277
This proof depends on definitions:  df-bi 117  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-rab 2537  df-in 3226  df-ss 3233  df-rp 10072
This theorem is used by:  rpcnne0  10091  rpcnap0  10092  divge1  10141  sqrtdiv  11830  efgt1p2  12487  efgt1p  12488  pilem1  16006  rpcxp0  16131  rpcxp1  16132  cxprec  16143  rplogbval  16181  rprelogbdiv  16193
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