Reasoning Memes

The perfect demonstration of contrapositive logic in the wild! The tutor says "if you need help, my door is always open" which logically transforms to "if the door is closed, you don't need help." The student immediately applies this logical equivalence with the confidence of a mathematician who just proved Fermat's Last Theorem. It's the most elegant escape from tutoring sessions since the invention of "my dog ate my homework." The smug little smile in panel 3 is every math major who's ever found a shortcut in a proof.