The phrase "and demonstrated beyond" is correct and usable in written English.
It can be used when discussing evidence or proof that goes further than what is typically expected or required.
Example: "The research findings were compelling and demonstrated beyond any doubt the effectiveness of the new treatment."
Alternatives: "and proven beyond" or "and shown beyond".
The latter was unperturbed by an early booking and demonstrated maturity beyond his 17 years.
He could lighten the mood of any mournful pitching change by slapping Manager Joe Torre on the chest with his glove and making a joke, and he has demonstrated, beyond any doubt, that he thrives in the spotlight.
It never occurred to me this would be perceived by anyone as being a "legal issue" for me, inasmuch as two years of criminal and civil investigation demonstrated beyond any reasonable doubt that this was, is and shall remain a skeleton in the closet of the former city official who filed a false report.
After all, his résumé is thin, he's not the best debater in the world and Hillary Clinton has demonstrated beyond a doubt that she is smart, tough and fully capable of being president.
The images exist: that can't be denied and, unless it is demonstrated beyond doubt that they are not genuine, it would be wrong for the Guardian not to share them with our readers.
Following World War II, Charles Dolfuss, the leading French historian of aviation, and C.H. Gibbs-Smith, his English counterpart, demonstrated beyond reasonable doubt that there was little substantial evidence to support Ader's claims for flights in 1891 and 1897.
We agree that this is a major point of the paper and therefore has to be demonstrated beyond doubt.
However, such CO2 working capacities on dry sorbents have yet to be demonstrated beyond the lab- and bench-scale.
In fact, economic history - and most recently the Clinton years - demonstrated beyond the shadow of a doubt -- that economies grow from the middle out, not the top down.
But based on program documents and interviews with program participants, the Associated Press has demonstrated beyond reasonable doubt that these claims of innocence are simply false.
