Definition df-c 8191

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 8183	. 2 class ℂ
2		cnr 7670	. . 3 class R
3	2, 2	cxp 4774	. 2 class (R × R)
4	1, 3	wceq 1402	1 wff ℂ = (R × R)

This definition is used by:  opelcn  8199  0ncn  8204  cnm  8205  addcnsr  8207  mulcnsr  8208  dfcnqs  8214  addvalex  8217  axcnex  8232  axresscn  8233  axaddcl  8237  axmulcl  8239  axaddcom  8243  ax0id  8251  axcnre  8254