The phrase "a document demonstrating" is correct and usable in written English.
It can be used when referring to a document that provides evidence or proof of something, typically in formal or academic contexts.
Example: "The report includes a document demonstrating the effectiveness of the new policy."
Alternatives: "a paper illustrating" or "a file showing".
There was initially some question whether Kristal would qualify, with rules requiring an official document demonstrating a person's age which needs to have been issued in the first 20 years of life.
In addition to bringing with him on the boat to Australia a welter of documents demonstrating his identity and his "well-founded fear" of persecution, he carries irrefutable evidence on his body.
Additionally, all purchases are submitted to a database with documents demonstrating that medicines are of good quality.
This document demonstrates that there is a will in the international community to have it done by then.
Style: The document demonstrates that the author has a clear command of the English language.
But verbatim notes by someone who reviewed the document demonstrate Mr. La Bella's frustrations.
The shadow chancellor, John McDonnell, said the document demonstrated why Hammond had been reluctant to mention fiscal targets.
Mr. Fidell said the mistaken release of the document demonstrated how difficult it would be for the prosecution to prove one of its charges, that his client knowingly mishandled classified materials.
"This document demonstrates that the prime minister mislead the House of Commons when he told the House of Commons that the Conservatives were planning 10% cuts and that he was not, because he was near 10% cuts in departmental spending".
"This document demonstrates that 9/11 was completely preventable at the checkpoint for this flight, and that United did not live up to its responsibilities for security," Donald A. Migliori, a lawyer for the family, said.
