Show the following questions being answered correctly:
Show the following questions being answered correctly:
Show the following questions being answered correctly:
Show the following questions being answered correctly:
Note that "Elephants can fly" is ambiguous (in ordinary English) between "All elephants can fly" and "some elephants can fly". The latter reading is true if Dumbo can fly. And, on that latter reading, it doesn't follow that Clyde can fly. However, since question 4b is, admittedly, odd, answer it as you see fit, clearly explaining any problems you see with it, as well as clarifying your answers.
Here's something else to consider: What if we give Cassie a rule saying that there exists exactly one elephant who can fly and then assert that Dumbo is that elephant? Then, when asked whether Clyde can fly, Cassie will surely say "no", right? Try it!
On the other hand, what happens if Dumbo has baby elephants who can also fly? The point is if there ever exists a second elephant that can fly, then saying there is exactly one elephant that can fly is not very useful. The fact that the only flying elephant that we know of happens to be Dumbo should not mean that he is the only flying elephant that exists or ever will exist.