Definition df-c 11069

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11096. (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 11061	. 2 class ℂ
2		cnr 10813	. . 3 class R
3	2, 2	cxp 5638	. 2 class (R × R)
4	1, 3	wceq 1554	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11077  0ncn  11081  addcnsr  11083  mulcnsr  11084  dfcnqs  11090  axaddf  11093  axmulf  11094  axcnex  11095  axresscn  11096  axcnre  11112  wuncn  11118  bj-inftyexpitaudisj  37645