Theorem sqvali

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

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

Proof

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