Definition df-c 11004

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11031. (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 10996	. 2 class ℂ
2		cnr 10748	. . 3 class R
3	2, 2	cxp 5612	. 2 class (R × R)
4	1, 3	wceq 1541	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11012  0ncn  11016  addcnsr  11018  mulcnsr  11019  dfcnqs  11025  axaddf  11028  axmulf  11029  axcnex  11030  axresscn  11031  axcnre  11047  wuncn  11053  bj-inftyexpitaudisj  37218