Definition df-c 11112

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11139. (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 11104	. 2 class ℂ
2		cnr 10856	. . 3 class R
3	2, 2	cxp 5673	. 2 class (R × R)
4	1, 3	wceq 1541	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11120  0ncn  11124  addcnsr  11126  mulcnsr  11127  dfcnqs  11133  axaddf  11136  axmulf  11137  axcnex  11138  axresscn  11139  axcnre  11155  wuncn  11161  bj-inftyexpitaudisj  36074