Definition df-c 7938

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 7930	. 2 class ℂ
2		cnr 7417	. . 3 class R
3	2, 2	cxp 4677	. 2 class (R × R)
4	1, 3	wceq 1373	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7946  0ncn  7951  cnm  7952  addcnsr  7954  mulcnsr  7955  dfcnqs  7961  addvalex  7964  axcnex  7979  axresscn  7980  axaddcl  7984  axmulcl  7986  axaddcom  7990  ax0id  7998  axcnre  8001