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Theorem nncni 9116
Description: A positive integer is a complex number. (Contributed by NM, 18-Aug-1999.)
Hypothesis
Ref Expression
nnre.1  |-  A  e.  NN
Assertion
Ref Expression
nncni  |-  A  e.  CC

Proof of Theorem nncni
StepHypRef Expression
1 nnre.1 . . 3  |-  A  e.  NN
21nnrei 9115 . 2  |-  A  e.  RR
32recni 8154 1  |-  A  e.  CC
Colors of variables: wff set class
Syntax hints:    e. wcel 2200   CCcc 7993   NNcn 9106
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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-ext 2211  ax-sep 4201  ax-cnex 8086  ax-resscn 8087  ax-1re 8089  ax-addrcl 8092
This theorem depends on definitions:  df-bi 117  df-tru 1398  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-v 2801  df-in 3203  df-ss 3210  df-int 3923  df-inn 9107
This theorem is referenced by:  9p1e10  9576  numnncl2  9596  dec10p  9616  3dec  10931  4bc2eq6  10991  ef01bndlem  12262  3dvds  12370  pockthi  12876  dec5nprm  12932  dec2nprm  12933  modxai  12934  modxp1i  12936  modsubi  12937
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