Definition df-c 8031

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 8023	. 2 class ℂ
2		cnr 7510	. . 3 class R
3	2, 2	cxp 4721	. 2 class (R × R)
4	1, 3	wceq 1395	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  8039  0ncn  8044  cnm  8045  addcnsr  8047  mulcnsr  8048  dfcnqs  8054  addvalex  8057  axcnex  8072  axresscn  8073  axaddcl  8077  axmulcl  8079  axaddcom  8083  ax0id  8091  axcnre  8094