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Definition df-c 10531
Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 10558. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)
Assertion
Ref Expression
df-c ℂ = (R × R)

Detailed syntax breakdown of Definition df-c
StepHypRef Expression
1 cc 10523 . 2 class
2 cnr 10275 . . 3 class R
32, 2cxp 5546 . 2 class (R × R)
41, 3wceq 1528 1 wff ℂ = (R × R)
Colors of variables: wff setvar class
This definition is referenced by:  opelcn  10539  0ncn  10543  addcnsr  10545  mulcnsr  10546  dfcnqs  10552  axaddf  10555  axmulf  10556  axcnex  10557  axresscn  10558  axcnre  10574  wuncn  10580  bj-inftyexpitaudisj  34379
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