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

Theorem nnsscn 9288
Description: The positive integers are a subset of the complex numbers. (Contributed by NM, 2-Aug-2004.)
Assertion
Ref Expression
nnsscn ℕ ⊆ ℂ

Proof of Theorem nnsscn
StepHypRef Expression
1 nnssre 9287 . 2 ℕ ⊆ ℝ
2 ax-resscn 8261 . 2 ℝ ⊆ ℂ
31, 2sstri 3257 1 ℕ ⊆ ℂ
Colors of variables: wff set class
Syntax hints:  wss 3220  cc 8167  cr 8168  cn 9283
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 4244  ax-cnex 8260  ax-resscn 8261  ax-1re 8263  ax-addrcl 8266
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 3966  df-inn 9284
This theorem is referenced by:  nnex  9289  nncn  9291  nncnd  9297  nn0addcl  9577  nn0mulcl  9578  dfz2  9696  nnexpcl  10967  fprodnncl  12355  mpodvdsmulf1o  16018  fsumdvdsmul  16019
  Copyright terms: Public domain W3C validator