Philosophy 101 logic
instructions: classify each categorical statement as either universal affirmative, universal negative, particular affirmative, or particular negative, and draw the appropriate circle diagram.
1. all good things eventually come to an end.
2. some political protests are peaceful.
3. some witches are not wicked.
4. there are no vampires from chicago.
5. wild animals are not good pets.
6. all sound arguments are valid.
7. not all valid arguments are sound.
8. all science fiction is boring.
instructions: for each argument, rewrite the argument in standard form and then decide whether it is valid or invalid by drawing the appropriate circle diagram.
1. some dinosaurs are herbivores. herbivores only eat plants. so some dinosaurs only eat plants.
2. some books are not best sellers. some best sellers are not made into movies. therefore, some books are not made into movies.
3. all cats have paws, and all paws have claws. so, all cats have claws.
4. some hobbits are dragonslayers. all dragonslayers are heroes. so, some hobbits are heroes.