Definition df-c 7880

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 7872	. 2 class ℂ
2		cnr 7359	. . 3 class R
3	2, 2	cxp 4658	. 2 class (R × R)
4	1, 3	wceq 1364	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7888  0ncn  7893  cnm  7894  addcnsr  7896  mulcnsr  7897  dfcnqs  7903  addvalex  7906  axcnex  7921  axresscn  7922  axaddcl  7926  axmulcl  7928  axaddcom  7932  ax0id  7940  axcnre  7943