Definition df-c 7650

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 7642	. 2 class ℂ
2		cnr 7129	. . 3 class R
3	2, 2	cxp 4545	. 2 class (R × R)
4	1, 3	wceq 1332	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7658  0ncn  7663  cnm  7664  addcnsr  7666  mulcnsr  7667  dfcnqs  7673  addvalex  7676  axcnex  7691  axresscn  7692  axaddcl  7696  axmulcl  7698  axaddcom  7702  ax0id  7710  axcnre  7713