Definition df-c 11113

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn 11140. (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 11105	. 2 class ℂ
2		cnr 10857	. . 3 class R
3	2, 2	cxp 5674	. 2 class (R × R)
4	1, 3	wceq 1542	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  11121  0ncn  11125  addcnsr  11127  mulcnsr  11128  dfcnqs  11134  axaddf  11137  axmulf  11138  axcnex  11139  axresscn  11140  axcnre  11156  wuncn  11162  bj-inftyexpitaudisj  36075