Definition df-c 11081

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11108. (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 11073	. 2 class ℂ
2		cnr 10825	. . 3 class R
3	2, 2	cxp 5639	. 2 class (R × R)
4	1, 3	wceq 1540	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11089  0ncn  11093  addcnsr  11095  mulcnsr  11096  dfcnqs  11102  axaddf  11105  axmulf  11106  axcnex  11107  axresscn  11108  axcnre  11124  wuncn  11130  bj-inftyexpitaudisj  37200