Therefore, no space-creatures are Plutonians. For no Plutonians are Martians. Jennifer is a banker, so Jennifer is respectable, since all bankers are. Whales are large.
Whales are mammals.
So some mammals are large. Rainy days are boring, and today is a rainy day. All mortals are imperfect beings, and no humans are immortals, whence it follows that only non-humans are perfect. He gets a headache whenever it snows, and he has a headache now, so it must be snowing. This Lesson Go ahead to Next Lesson Return to Logic Syllabus 2000 Garth Kemerling.