I'll need a citation for that claim from a non-partisan source.

Where is it?

While you're looking, I suppose I will have to school you on the alternative irregular form of the past participle "disprove".

Something's got to first be shown to be true, before it can be disproven.

I'd bet you're a language teacher too.

Give it up already, you've embarrassed yourself enough.

But you'll keep going, guaranteed.