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Metamath Proof Explorer

Theorem sqvali

Description: Value of square. Inference version. (Contributed by NM, 1-Aug-1999)

		Ref	Expression
	Hypothesis	sqval.1	$⊢ A \in ℂ$
	Assertion	sqvali	$⊢ A^{2} = A A$

Step	Hyp	Ref	Expression
1		sqval.1	$⊢ A \in ℂ$
2		sqval	$⊢ A \in ℂ \to A^{2} = A A$
3	1 2	ax-mp	$⊢ A^{2} = A A$