Words similar to proof

Example sentences for: proof

How can you use “proof” in a sentence? Here are some example sentences to help you improve your vocabulary:

According to the op-ed piece, that's proof that the average American was better off without NAFTA.
Though no proof can be put forward for this claim, from the ancient votives left in the cave it was certainly very important during Minoan times.
The proof of pharmacological principle uses MRI as a marker of response to therapy, replicating the preclinical experiment in patients.
Among the many clues offered in Assassination Science , a 1998 anthology that devotes 200 pages to proof that the film is a fraud: People make supposedly implausible moves between frames, the "blink" pattern on the presidential limo's front lights is said to be uneven, the awful results of the head shot can't possibly have lasted only one frame (the horrible Frame 313).
The clearest proof of the new left's poverty is what Clinton and Blair have to say about the "middle class."