Definition df-c 7759

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 7751	. 2 class ℂ
2		cnr 7238	. . 3 class R
3	2, 2	cxp 4602	. 2 class (R × R)
4	1, 3	wceq 1343	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7767  0ncn  7772  cnm  7773  addcnsr  7775  mulcnsr  7776  dfcnqs  7782  addvalex  7785  axcnex  7800  axresscn  7801  axaddcl  7805  axmulcl  7807  axaddcom  7811  ax0id  7819  axcnre  7822