Definition df-c 7780

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 7772	. 2 class ℂ
2		cnr 7259	. . 3 class R
3	2, 2	cxp 4609	. 2 class (R × R)
4	1, 3	wceq 1348	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7788  0ncn  7793  cnm  7794  addcnsr  7796  mulcnsr  7797  dfcnqs  7803  addvalex  7806  axcnex  7821  axresscn  7822  axaddcl  7826  axmulcl  7828  axaddcom  7832  ax0id  7840  axcnre  7843