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Metamath Proof Explorer

Theorem scaid

Description: Utility theorem: index-independent form of scalar df-sca . (Contributed by Mario Carneiro, 19-Jun-2014)

		Ref	Expression
	Assertion	scaid	$⊢ Scalar = Slot Scalar (ndx)$

Step	Hyp	Ref	Expression
1		df-sca	$⊢ Scalar = Slot 5$
2		5nn	$⊢ 5 \in ℕ$
3	1 2	ndxid	$⊢ Scalar = Slot Scalar (ndx)$