To exemplify, show, indicate, or demonstrate are synonyms for "be evidence of." More specifically, to exemplify means to serve as an example of, to show means to reveal or prove, to indicate means to point out or suggest, and to demonstrate means to prove something beyond doubt. These synonyms are useful when trying to convey a sense of proof or indication in writing or speech, and can help to give statements more weight and credibility. Choosing the right synonym can also help to create nuance and subtly convey a different meaning or tone.