Definition df-c 6895

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 6887	. 2 class CC
2		cnr 6395	. . 3 class R.
3	2, 2	cxp 4343	. 2 class ( R. X. R. )
4	1, 3	wceq 1243	1 wff CC = ( R. X. R. )

This definition is referenced by:  opelcn  6903  0ncn  6908  addcnsr  6910  mulcnsr  6911  dfcnqs  6917  addvalex  6920  axcnex  6935  axresscn  6936  axaddcl  6940  axmulcl  6942  axaddcom  6944  ax0id  6952  axcnre  6955