Definition df-c 6987

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 6979	. 2 class ℂ
2		cnr 6487	. . 3 class R
3	2, 2	cxp 4361	. 2 class (R × R)
4	1, 3	wceq 1284	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  6995  0ncn  7000  addcnsr  7002  mulcnsr  7003  dfcnqs  7009  addvalex  7012  axcnex  7027  axresscn  7028  axaddcl  7032  axmulcl  7034  axaddcom  7036  ax0id  7044  axcnre  7047