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Theorem 8cn 8806
 Description: The number 8 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.)
Assertion
Ref Expression
8cn

Proof of Theorem 8cn
StepHypRef Expression
1 8re 8805 . 2
21recni 7778 1
 Colors of variables: wff set class Syntax hints:   wcel 1480  cc 7618  c8 8777 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 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-11 1484  ax-4 1487  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121  ax-resscn 7712  ax-1re 7714  ax-addrcl 7717 This theorem depends on definitions:  df-bi 116  df-nf 1437  df-sb 1736  df-clab 2126  df-cleq 2132  df-clel 2135  df-in 3077  df-ss 3084  df-2 8779  df-3 8780  df-4 8781  df-5 8782  df-6 8783  df-7 8784  df-8 8785 This theorem is referenced by:  9m1e8  8846  8p2e10  9261  8t2e16  9296  8t5e40  9299  cos2bnd  11467  ex-exp  12939
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