Definition df-c 11074

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11101. (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 11066	. 2 class ℂ
2		cnr 10818	. . 3 class R
3	2, 2	cxp 5636	. 2 class (R × R)
4	1, 3	wceq 1540	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11082  0ncn  11086  addcnsr  11088  mulcnsr  11089  dfcnqs  11095  axaddf  11098  axmulf  11099  axcnex  11100  axresscn  11101  axcnre  11117  wuncn  11123  bj-inftyexpitaudisj  37193