Definition df-c 7904

Description: Define the set of complex numbers. (Contributed by NM, 22-Feb-1996.)

Assertion

Ref	Expression
df-c	⊢ ℂ = (R × R)

Detailed syntax breakdown of Definition df-c

Step	Hyp	Ref	Expression
1		cc 7896	. 2 class ℂ
2		cnr 7383	. . 3 class R
3	2, 2	cxp 4662	. 2 class (R × R)
4	1, 3	wceq 1364	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7912  0ncn  7917  cnm  7918  addcnsr  7920  mulcnsr  7921  dfcnqs  7927  addvalex  7930  axcnex  7945  axresscn  7946  axaddcl  7950  axmulcl  7952  axaddcom  7956  ax0id  7964  axcnre  7967