Definition df-c 9942

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 9969. (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 9934	. 2 class ℂ
2		cnr 9687	. . 3 class R
3	2, 2	cxp 5112	. 2 class (R × R)
4	1, 3	wceq 1483	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  9950  0ncn  9954  addcnsr  9956  mulcnsr  9957  dfcnqs  9963  axaddf  9966  axmulf  9967  axcnex  9968  axresscn  9969  axcnre  9985  wuncn  9991