Definition df-c 11161

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11188. (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 11153	. 2 class ℂ
2		cnr 10905	. . 3 class R
3	2, 2	cxp 5683	. 2 class (R × R)
4	1, 3	wceq 1540	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11169  0ncn  11173  addcnsr  11175  mulcnsr  11176  dfcnqs  11182  axaddf  11185  axmulf  11186  axcnex  11187  axresscn  11188  axcnre  11204  wuncn  11210  bj-inftyexpitaudisj  37206