Definition df-c 8043

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 8035	. 2 class ℂ
2		cnr 7522	. . 3 class R
3	2, 2	cxp 4725	. 2 class (R × R)
4	1, 3	wceq 1397	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  8051  0ncn  8056  cnm  8057  addcnsr  8059  mulcnsr  8060  dfcnqs  8066  addvalex  8069  axcnex  8084  axresscn  8085  axaddcl  8089  axmulcl  8091  axaddcom  8095  ax0id  8103  axcnre  8106