Definition df-c 11022

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11049. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)

Assertion

Ref	Expression
df-c	⊢ ℂ = (R × R)

Detailed syntax breakdown of Definition df-c

Step	Hyp	Ref	Expression
1		cc 11014	. 2 class ℂ
2		cnr 10766	. . 3 class R
3	2, 2	cxp 5619	. 2 class (R × R)
4	1, 3	wceq 1541	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11030  0ncn  11034  addcnsr  11036  mulcnsr  11037  dfcnqs  11043  axaddf  11046  axmulf  11047  axcnex  11048  axresscn  11049  axcnre  11065  wuncn  11071  bj-inftyexpitaudisj  37260