Definition df-c 11158

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11185. (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 11150	. 2 class ℂ
2		cnr 10902	. . 3 class R
3	2, 2	cxp 5686	. 2 class (R × R)
4	1, 3	wceq 1536	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11166  0ncn  11170  addcnsr  11172  mulcnsr  11173  dfcnqs  11179  axaddf  11182  axmulf  11183  axcnex  11184  axresscn  11185  axcnre  11201  wuncn  11207  bj-inftyexpitaudisj  37187