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Theorem 8cn 8830
Description: The number 8 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.)
Assertion
Ref Expression
8cn  |-  8  e.  CC

Proof of Theorem 8cn
StepHypRef Expression
1 8re 8829 . 2  |-  8  e.  RR
21recni 7802 1  |-  8  e.  CC
Colors of variables: wff set class
Syntax hints:    e. wcel 1481   CCcc 7642   8c8 8801
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1483  ax-11 1485  ax-4 1488  ax-17 1507  ax-i9 1511  ax-ial 1515  ax-i5r 1516  ax-ext 2122  ax-resscn 7736  ax-1re 7738  ax-addrcl 7741
This theorem depends on definitions:  df-bi 116  df-nf 1438  df-sb 1737  df-clab 2127  df-cleq 2133  df-clel 2136  df-in 3082  df-ss 3089  df-2 8803  df-3 8804  df-4 8805  df-5 8806  df-6 8807  df-7 8808  df-8 8809
This theorem is referenced by:  9m1e8  8870  8p2e10  9285  8t2e16  9320  8t5e40  9323  cos2bnd  11503  ex-exp  13110
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