Definition df-c 8081

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 8073	. 2 class CC
2		cnr 7560	. . 3 class R.
3	2, 2	cxp 4729	. 2 class ( R. X. R. )
4	1, 3	wceq 1398	1 wff CC = ( R. X. R. )

This definition is referenced by:  opelcn  8089  0ncn  8094  cnm  8095  addcnsr  8097  mulcnsr  8098  dfcnqs  8104  addvalex  8107  axcnex  8122  axresscn  8123  axaddcl  8127  axmulcl  8129  axaddcom  8133  ax0id  8141  axcnre  8144