Definition df-c 8185

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 8177	. 2 class ℂ
2		cnr 7664	. . 3 class R
3	2, 2	cxp 4772	. 2 class (R × R)
4	1, 3	wceq 1402	1 wff ℂ = (R × R)

This definition is used by:  opelcn  8193  0ncn  8198  cnm  8199  addcnsr  8201  mulcnsr  8202  dfcnqs  8208  addvalex  8211  axcnex  8226  axresscn  8227  axaddcl  8231  axmulcl  8233  axaddcom  8237  ax0id  8245  axcnre  8248