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Definition df-c 7817
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 7809 . 2 class
2 cnr 7296 . . 3 class R
32, 2cxp 4625 . 2 class (R × R)
41, 3wceq 1353 1 wff ℂ = (R × R)
Colors of variables: wff set class
This definition is referenced by:  opelcn  7825  0ncn  7830  cnm  7831  addcnsr  7833  mulcnsr  7834  dfcnqs  7840  addvalex  7843  axcnex  7858  axresscn  7859  axaddcl  7863  axmulcl  7865  axaddcom  7869  ax0id  7877  axcnre  7880
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