Definition df-c 7878

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 7870	. 2 class ℂ
2		cnr 7357	. . 3 class R
3	2, 2	cxp 4657	. 2 class (R × R)
4	1, 3	wceq 1364	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7886  0ncn  7891  cnm  7892  addcnsr  7894  mulcnsr  7895  dfcnqs  7901  addvalex  7904  axcnex  7919  axresscn  7920  axaddcl  7924  axmulcl  7926  axaddcom  7930  ax0id  7938  axcnre  7941