Theorem 1tiei

Description: 1 times _i equals _i . (Contributed by SN, 25-Apr-2025)

	Ref	Expression
Assertion	1tiei	|- ( 1 x. _i ) = _i

Proof

Step	Hyp	Ref	Expression
1		ax-icn	|- _i e. CC
2	1	mullidi	|- ( 1 x. _i ) = _i