Definition df-c 8129

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 8121	. 2 class ℂ
2		cnr 7608	. . 3 class R
3	2, 2	cxp 4746	. 2 class (R × R)
4	1, 3	wceq 1398	1 wff ℂ = (R × R)

This definition is referenced by:  opelcn  8137  0ncn  8142  cnm  8143  addcnsr  8145  mulcnsr  8146  dfcnqs  8152  addvalex  8155  axcnex  8170  axresscn  8171  axaddcl  8175  axmulcl  8177  axaddcom  8181  ax0id  8189  axcnre  8192