whoops i didnt mean to comment

based cheese

so true Fat Cat

Or

All chefs use knives. Bob uses a knife. Therefore, Bob is a chef.

Bob might not be. He might be a ninja or something.

If all Jedi USE the force, that just means that all Jedi have the ability to use it. It doesn't say anything about if Sith can use it, etc. Because we just don't know if others can use it, it's not valid. Count Dooku might as well be a force user, but not a Jedi. That possibility still exists.

Another example:

All dogs like peanut butter. Jim likes peanut butter. Does this mean Jim is a dog? He might not be, right? It's not a requirement to be a dog to like peanut butter. There's a bit of a hole in that argument.

Hope this helps!