Definition df-c 7817

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 7809	. 2 class CC
2		cnr 7296	. . 3 class R.
3	2, 2	cxp 4625	. 2 class ( R. X. R. )
4	1, 3	wceq 1353	1 wff CC = ( R. X. R. )

This definition is referenced by:  opelcn  7825  0ncn  7830  cnm  7831  addcnsr  7833  mulcnsr  7834  dfcnqs  7840  addvalex  7843  axcnex  7858  axresscn  7859  axaddcl  7863  axmulcl  7865  axaddcom  7869  ax0id  7877  axcnre  7880