Theorem sqvali

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

	Ref	Expression
Hypothesis	sqval.1	⊢ 𝐴 ∈ ℂ
Assertion	sqvali	⊢ ( 𝐴 ↑ 2 ) = ( 𝐴 · 𝐴 )

Proof

Step	Hyp	Ref	Expression
1		sqval.1	⊢ 𝐴 ∈ ℂ
2		sqval	⊢ ( 𝐴 ∈ ℂ → ( 𝐴 ↑ 2 ) = ( 𝐴 · 𝐴 ) )
3	1 2	ax-mp	⊢ ( 𝐴 ↑ 2 ) = ( 𝐴 · 𝐴 )