If you google laplace transform formula today, most likely you'll see a Google knowledge panel with a definition like this:
This $t'$ at differential's place and then the description of it as "first derivative of the function f(t)" doesn't make much sense to me. Apparently, knowledge panels take information from Google's Knowledge Graph (according to Google) and I don't think there is a way to find the source of this formula.
So is Google wrong? Or am I missing something?