Definition df-starv

Description: Define the involution function of a *-ring. (Contributed by NM, 4-Sep-2011) (Revised by Mario Carneiro, 14-Aug-2015) Use its index-independent form starvid instead. (New usage is discouraged.)

	Ref	Expression
Assertion	df-starv	⊢ *𝑟 = Slot 4

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cstv	⊢ *𝑟
1		c4	⊢ 4
2	1	cslot	⊢ Slot 4
3	0 2	wceq	⊢ *𝑟 = Slot 4