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Theorem nnsscn 9262
Description: The positive integers are a subset of the complex numbers. (Contributed by NM, 2-Aug-2004.)
Assertion
Ref Expression
nnsscn  |-  NN  C_  CC

Proof of Theorem nnsscn
StepHypRef Expression
1 nnssre 9261 . 2  |-  NN  C_  RR
2 ax-resscn 8235 . 2  |-  RR  C_  CC
31, 2sstri 3251 1  |-  NN  C_  CC
Colors of variables: wff set class
Syntax hints:    C_ wss 3214   CCcc 8141   RRcr 8142   NNcn 9257
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 4233  ax-cnex 8234  ax-resscn 8235  ax-1re 8237  ax-addrcl 8240
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 3220  df-ss 3227  df-int 3955  df-inn 9258
This theorem is referenced by:  nnex  9263  nncn  9265  nncnd  9271  nn0addcl  9551  nn0mulcl  9552  dfz2  9670  nnexpcl  10941  fprodnncl  12324  mpodvdsmulf1o  15987  fsumdvdsmul  15988
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