The phrase "also proved that it" is correct and usable in written English.
You can use it when discussing evidence or findings that support a previous statement or claim.
Example: "The research not only confirmed the initial hypothesis but also proved that it was applicable in real-world scenarios."
Alternatives: "also demonstrated that it" or "further established that it".
It also proved that it was not just about Wong.
It has also proved that it is possible to succeed without major tournaments (and starting this year, no PGA events), but with a blend of L.P.G.A., Nationwide, Champions and European Tour events, and news, talk and instructional programs.
She also proved that it was possible to render spoken lines naturally without shouting, something that John Del Carlo, who played the envoy Baron Mirko Zeta as an oafish, hectoring ham, could learn from.
As a single-entity operation, M.L.S. had the luxury of engineering the swapping of the rights to Adu from Dallas, which held the first selection in its draft, to D.C. United, which is based close to Adu's home in Potomac, Md. It also proved that it would pay a premier player a hefty salary despite budget constraints that keep the salaries of most M.L.S. players under $30,000 a year.
Reagan also proved that it is possible, within limits, to govern successfully as an ideological president.
We have also proved that it is defined on a non-empty, convex and compact set.
It also proved that network based analysis could reveal markers that, although they individually failed the single marker test, their joint affects on the disease might be significant.
We also prove that it is decidable whether or not a context-free language is an involution hypercode.
It also proves that it is possible to reconcile political objectives and urban development while safeguarding landscape quality and providing new opportunities for public recreation and education.
The gangster regime has also proven that it can get through the South's air defence systems achieving something of a military hat-trick since 2010.
