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	$$⊢{\ast }_{𝑟}=\mathrm{Slot}4$$

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cstv	$$class{\ast }_{𝑟}$$
1		c4	$$class4$$
2	1	cslot	$$class\mathrm{Slot}4$$
3	0 2	wceq	$$wff{\ast }_{𝑟}=\mathrm{Slot}4$$