Definition df-c

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn . (Contributed by NM, 22-Feb-1996) (New usage is discouraged.)

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

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cc	|- CC
1		cnr	|- R.
2	1 1	cxp	|- ( R. X. R. )
3	0 2	wceq	|- CC = ( R. X. R. )