re: #150 goddamnedfrank

Both are correct. Proven is more commonly used as an adjective, as in a proven hypothesis. Still, if it sounds awkward to your ear it probably is, you can usually substitute demonstrated, established, verified, etc.

The number of times I proofread and corrected an e-mail for an officemate and said “I can’t tell you the rule behind this, but this is what will be correct” was not small.