The phrase "also vindicate" is correct and usable in written English.
It can be used when you want to indicate that something not only serves one purpose but also serves to justify or prove something else.
Example: "The evidence presented in court will also vindicate the defendant's claims of innocence."
Alternatives: "also justify" or "also exonerate".
It would also vindicate the Republican Party's (often notional) commitment to offering incremental alternatives to bloated liberal bills.
It would also vindicate the Australian Rugby Union's decision to sign him until 2013, before the global tournament had even begun this year.
It would also vindicate both a new film management team, and the decision by the Disney chief executive, Robert A. Iger, to dismantle the company's Miramax art film unit.
A compromise in Tunisia would also vindicate pragmatic [rather than confrontational] approaches to Brotherhood organisations, which have fallen out of favour because of their religious rigidity and conservative gender politics.Is Mr Laurence right to compare 21st century Islamism with 20th century European communism?
The early closure of Andrew Lloyd Webber's Stephen Ward may also vindicate some who questioned whether the 16th to 19th century habit of naming shows after their protagonists (Richard III, Hedda Gabler and so on) still worked in the 21st century.
It would also vindicate not only Dynegy, which took a more measured approach to doing business in those markets, but also critics uncomfortable with energy deregulation who said Enron's energy trading was ruthless, its finances murky and its power and influence too extensive.
It also vindicated North American hockey.
In Ohio, which was the subject of exhaustive surveying and analysis, the pollsters were also vindicated.
Sam Troughton also vindicates Hazlitt's description of Romeo as "Hamlet in love".
The return of "functional elegance" also vindicates those who protested the demolition of old Penn Station.
They are also vindicating, said Grann, Percy Fawcett, the explorer who partly inspired Conan Doyle's book The Lost World.
