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Theorem nnsscn 9291
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 9290 . 2  |-  NN  C_  RR
2 ax-resscn 8264 . 2  |-  RR  C_  CC
31, 2sstri 3257 1  |-  NN  C_  CC
Colors of variables: wff set class
Syntax hints:    C_ wss 3220   CCcc 8170   RRcr 8171   NNcn 9286
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 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-sep 4247  ax-cnex 8263  ax-resscn 8264  ax-1re 8266  ax-addrcl 8269
This theorem depends on definitions:  df-bi 117  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-v 2823  df-in 3226  df-ss 3233  df-int 3969  df-inn 9287
This theorem is referenced by:  nnex  9292  nncn  9294  nncnd  9300  nn0addcl  9580  nn0mulcl  9581  dfz2  9699  nnexpcl  10970  fprodnncl  12358  mpodvdsmulf1o  16021  fsumdvdsmul  16022
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