Definition df-starv 17359

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 17390 instead. (New usage is discouraged.)

Assertion

Ref	Expression
df-starv	⊢ *𝑟 = Slot 4

Detailed syntax breakdown of Definition df-starv

Step	Hyp	Ref	Expression
1		cstv 17346	. 2 class *𝑟
2		c4 12322	. . 3 class 4
3	2	cslot 17275	. 2 class Slot 4
4	1, 3	wceq 1570	1 wff *𝑟 = Slot 4

This definition is used by:  starvndx  17389  starvid  17390