Definition df-c 11120

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11147. (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

Step	Hyp	Ref	Expression
1		cc 11112	. 2 class ℂ
2		cnr 10864	. . 3 class R
3	2, 2	cxp 5675	. 2 class (R × R)
4	1, 3	wceq 1539	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11128  0ncn  11132  addcnsr  11134  mulcnsr  11135  dfcnqs  11141  axaddf  11144  axmulf  11145  axcnex  11146  axresscn  11147  axcnre  11163  wuncn  11169  bj-inftyexpitaudisj  36391