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Definition df-c 6923
Description: Define the set of complex numbers. (Contributed by NM, 22-Feb-1996.)
Assertion
Ref Expression
df-c ℂ = (R × R)

Detailed syntax breakdown of Definition df-c
StepHypRef Expression
1 cc 6915 . 2 class
2 cnr 6423 . . 3 class R
32, 2cxp 4368 . 2 class (R × R)
41, 3wceq 1257 1 wff ℂ = (R × R)
Colors of variables: wff set class
This definition is referenced by:  opelcn  6931  0ncn  6936  addcnsr  6938  mulcnsr  6939  dfcnqs  6945  addvalex  6948  axcnex  6963  axresscn  6964  axaddcl  6968  axmulcl  6970  axaddcom  6972  ax0id  6980  axcnre  6983
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