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Definition df-c 7453
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 7445 . 2 class
2 cnr 6953 . . 3 class R
32, 2cxp 4465 . 2 class (R × R)
41, 3wceq 1296 1 wff ℂ = (R × R)
Colors of variables: wff set class
This definition is referenced by:  opelcn  7461  0ncn  7466  addcnsr  7468  mulcnsr  7469  dfcnqs  7475  addvalex  7478  axcnex  7493  axresscn  7494  axaddcl  7498  axmulcl  7500  axaddcom  7502  ax0id  7510  axcnre  7513
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