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Theorem nnrei 9142
Description: A positive integer is a real number. (Contributed by NM, 18-Aug-1999.)
Hypothesis
Ref Expression
nnre.1 𝐴 ∈ ℕ
Assertion
Ref Expression
nnrei 𝐴 ∈ ℝ

Proof of Theorem nnrei
StepHypRef Expression
1 nnre.1 . 2 𝐴 ∈ ℕ
2 nnre 9140 . 2 (𝐴 ∈ ℕ → 𝐴 ∈ ℝ)
31, 2ax-mp 5 1 𝐴 ∈ ℝ
Colors of variables: wff set class
Syntax hints:  wcel 2200  cr 8021  cn 9133
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 4205  ax-cnex 8113  ax-resscn 8114  ax-1re 8116  ax-addrcl 8119
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 2802  df-in 3204  df-ss 3211  df-int 3927  df-inn 9134
This theorem is referenced by:  nncni  9143  nnap0i  9164  nnne0i  9165  10re  9619  numlt  9625  numltc  9626  ef01bndlem  12307  pockthi  12921  strleun  13177  strle1g  13179  2strbasg  13193  2stropg  13194  tsetndxnbasendx  13264  plendxnbasendx  13278  dsndxnbasendx  13293  unifndxnbasendx  13303  slotsdifunifndx  13305  basendxnedgfndx  15852  struct2slots2dom  15879
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