For each argument, evaluate the truth of each premise (write "true," "false," or "questionable"). Then evaluate the argument's support (write "valid" or "invalid," and briefly explain why). Finally, determine the overall quality of the argument (write "sound" or "unsound"), and briefly explain why.

SAMPLE: P1) Some dads have a beard. P2) All bearded people are mean. C) Some dads are mean. Truth of premise 1: true Truth of premise 2: questionable ("mean" is subjective) (true, false, or questionable) Support: valid (valid or invalid) Why: the premises establish that bearded dads are mean, so some dads (the ones with beards) are mean Overall: unsound (sound or unsound) Why: fails the truth test -- premise 2 is not true

1. P1) All bats are mammals. P2) All mammals are warm-blooded. . C) All bats are warm-blooded. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

2. P1) All students in this class are humans. P2) All teenagers in this class are humans. . C) All students in this class are teenagers. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

3. P1) No humans are amphibians. P2) All frogs are amphibians. C) No frogs are humans. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

4. P1) All bats are mammals. P2) All bats have wings. C) All mammals have wings. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

5. P1) If the teacher of this class sings, then students in this class cringe. P2) The teacher of this class is singing right now. C) Students in this class are cringing right now. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

6. P1) If the teacher of this class sings, then students in this class cringe. P2) The teacher of this class is not singing right now. C) Students in this class are not cringing right now. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

7. P1) If the teacher of this class sings, then students in this class cringe. P2) Students in this class are cringing right now. C) The teacher of this class is singing right now. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

P1) If your teacher sings, then students in this class cringe. P2) Students in this class are not cringing right now. C) Your teacher is not singing right now. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

9. P1) Oprah Winfrey is a person. P2) Some people ate tacos yesterday. C) Oprah Winfrey ate tacos yesterday. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why:

10. P1) All students in this class are mammals. P2) All humans are mammals. C) All students in this class are humans. Truth of premise 1: Truth of premise 2: (true, false, or questionable) Support: (valid or invalid) Why: Overall: (sound or unsound) Why: