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Theorem nncni 9243
Description: A positive integer is a complex number. (Contributed by NM, 18-Aug-1999.)
Hypothesis
Ref Expression
nnre.1 𝐴 ∈ ℕ
Assertion
Ref Expression
nncni 𝐴 ∈ ℂ

Proof of Theorem nncni
StepHypRef Expression
1 nnre.1 . . 3 𝐴 ∈ ℕ
21nnrei 9242 . 2 𝐴 ∈ ℝ
32recni 8282 1 𝐴 ∈ ℂ
Colors of variables: wff set class
Syntax hints:  wcel 2203  cc 8121  cn 9233
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 2214  ax-sep 4227  ax-cnex 8214  ax-resscn 8215  ax-1re 8217  ax-addrcl 8220
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ral 2525  df-v 2814  df-in 3216  df-ss 3223  df-int 3949  df-inn 9234
This theorem is referenced by:  9p1e10  9707  numnncl2  9727  dec10p  9747  3dec  11072  4bc2eq6  11132  ef01bndlem  12435  3dvds  12543  pockthi  13049  dec5nprm  13105  dec2nprm  13106  modxai  13107  modxp1i  13109  modsubi  13110
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