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Theorem nn0cn 8191
Description: A nonnegative integer is a complex number. (Contributed by NM, 9-May-2004.)
Assertion
Ref Expression
nn0cn (𝐴 ∈ ℕ0𝐴 ∈ ℂ)

Proof of Theorem nn0cn
StepHypRef Expression
1 nn0sscn 8186 . 2 0 ⊆ ℂ
21sseli 2941 1 (𝐴 ∈ ℕ0𝐴 ∈ ℂ)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 1393  cc 6887  0cn0 8181
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 630  ax-5 1336  ax-7 1337  ax-gen 1338  ax-ie1 1382  ax-ie2 1383  ax-8 1395  ax-10 1396  ax-11 1397  ax-i12 1398  ax-bndl 1399  ax-4 1400  ax-17 1419  ax-i9 1423  ax-ial 1427  ax-i5r 1428  ax-ext 2022  ax-sep 3875  ax-cnex 6975  ax-resscn 6976  ax-1re 6978  ax-addrcl 6981  ax-rnegex 6993
This theorem depends on definitions:  df-bi 110  df-tru 1246  df-nf 1350  df-sb 1646  df-clab 2027  df-cleq 2033  df-clel 2036  df-nfc 2167  df-ral 2311  df-rex 2312  df-v 2559  df-un 2922  df-in 2924  df-ss 2931  df-sn 3381  df-int 3616  df-inn 7915  df-n0 8182
This theorem is referenced by:  nn0nnaddcl  8213  elnn0nn  8224  nn0n0n1ge2  8311  uzaddcl  8529  fzctr  8991  nn0split  8994  zpnn0elfzo1  9064  ubmelm1fzo  9082  subfzo0  9097  nn0ennn  9209  expadd  9297  expmul  9300  bernneq  9369  bernneq2  9370  nn0seqcvgd  9880
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