Definition df-c 7973

Description: Define the set of complex numbers. (Contributed by NM, 22-Feb-1996.)

Assertion

Ref	Expression
df-c	⊢ ℂ = (R × R)

Detailed syntax breakdown of Definition df-c

Step	Hyp	Ref	Expression
1		cc 7965	. 2 class ℂ
2		cnr 7452	. . 3 class R
3	2, 2	cxp 4694	. 2 class (R × R)
4	1, 3	wceq 1375	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  7981  0ncn  7986  cnm  7987  addcnsr  7989  mulcnsr  7990  dfcnqs  7996  addvalex  7999  axcnex  8014  axresscn  8015  axaddcl  8019  axmulcl  8021  axaddcom  8025  ax0id  8033  axcnre  8036