ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  nnsscn Unicode version

Theorem nnsscn 9207
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 9206 . 2  |-  NN  C_  RR
2 ax-resscn 8184 . 2  |-  RR  C_  CC
31, 2sstri 3237 1  |-  NN  C_  CC
Colors of variables: wff set class
Syntax hints:    C_ wss 3201   CCcc 8090   RRcr 8091   NNcn 9202
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 2213  ax-sep 4212  ax-cnex 8183  ax-resscn 8184  ax-1re 8186  ax-addrcl 8189
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516  df-v 2805  df-in 3207  df-ss 3214  df-int 3934  df-inn 9203
This theorem is referenced by:  nnex  9208  nncn  9210  nncnd  9216  nn0addcl  9496  nn0mulcl  9497  dfz2  9613  nnexpcl  10877  fprodnncl  12251  mpodvdsmulf1o  15804  fsumdvdsmul  15805
  Copyright terms: Public domain W3C validator