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Definition df-c 6893
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 6885 . 2 class
2 cnr 6393 . . 3 class R
32, 2cxp 4343 . 2 class (R × R)
41, 3wceq 1243 1 wff ℂ = (R × R)
Colors of variables: wff set class
This definition is referenced by:  opelcn  6901  0ncn  6906  addcnsr  6908  mulcnsr  6909  dfcnqs  6915  addvalex  6918  axcnex  6933  axresscn  6934  axaddcl  6938  axmulcl  6940  axaddcom  6942  ax0id  6950  axcnre  6953
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