'thinking you know that something has happened because you have been convinced by evidence that it has happened when in fact it hasn't happened but something else equivalent has, with that result that you sort of know something that has happened for which you didn't have any direct evidence, and where you will never realise that this isn't knowledge type A' :)

:)

Yeah, not really expect that :) The closest I can think of is when people use varying emphases and modifiers, like "I know it, I just KNOW it" means "I have a strong feeling but no evidence" or "You can't KNOW that" means "it's pretty certain that it is, but it's always possible you've misinterpreted it"