This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.

Metamath Proof Explorer

Theorem starvndx

Description: Index value of the df-starv slot. (Contributed by Mario Carneiro, 14-Aug-2015) (New usage is discouraged.)

		Ref	Expression
	Assertion	starvndx	⊢ ( *_𝑟 ‘ ndx ) = 4

Step	Hyp	Ref	Expression
1		df-starv	⊢ *_𝑟 = Slot 4
2		4nn	⊢ 4 ∈ ℕ
3	1 2	ndxarg	⊢ ( *_𝑟 ‘ ndx ) = 4