Definition df-c 8186

Description: Define the set of complex numbers. (Contributed by NM, 22-Feb-1996.)

Assertion

Ref	Expression
df-c	|- CC = ( R. X. R. )

Detailed syntax breakdown of Definition df-c

Step	Hyp	Ref	Expression
1		cc 8178	. 2 class CC
2		cnr 7665	. . 3 class R.
3	2, 2	cxp 4772	. 2 class ( R. X. R. )
4	1, 3	wceq 1402	1 wff CC = ( R. X. R. )

This definition is used by:  opelcn  8194  0ncn  8199  cnm  8200  addcnsr  8202  mulcnsr  8203  dfcnqs  8209  addvalex  8212  axcnex  8227  axresscn  8228  axaddcl  8232  axmulcl  8234  axaddcom  8238  ax0id  8246  axcnre  8249