Definition df-c 11207

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11234. (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 11199	. 2 class ℂ
2		cnr 10951	. . 3 class R
3	2, 2	cxp 5648	. 2 class (R × R)
4	1, 3	wceq 1569	1 wff ℂ = (R × R)

This definition is used by:  opelcn  11215  0ncn  11219  addcnsr  11221  mulcnsr  11222  dfcnqs  11228  axaddf  11231  axmulf  11232  axcnex  11233  axresscn  11234  axcnre  11250  wuncn  11256  bj-inftyexpitaudisj  38202