Definition df-c 11233

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11260. (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 11225	. 2 class ℂ
2		cnr 10977	. . 3 class R
3	2, 2	cxp 5653	. 2 class (R × R)
4	1, 3	wceq 1570	1 wff ℂ = (R × R)

This definition is used by:  opelcn  11241  0ncn  11245  addcnsr  11247  mulcnsr  11248  dfcnqs  11254  axaddf  11257  axmulf  11258  axcnex  11259  axresscn  11260  axcnre  11276  wuncn  11282  bj-inftyexpitaudisj  38318