What is the best statement for C2? P1.  Either cardio or wei…

What is the best statement for C2? P1.  Either cardio or weight-training increases limb strength. P2. _____________________________________________________ C1. Cardio increases limb strength.  (disjunctive syllogism P1, P2) P3. If breathing does not increase limb strength, then cardio does not increase limb strength. ∴C2. _____________________________________________________(modus tollens C1, P3)

Analyze each proof.  Decide if the proof is correct, or if t…

Analyze each proof.  Decide if the proof is correct, or if the proof has an error. Inelegant proofs are not necessarily incorrect. 1. P 2. (Q ⊃ R) ⊃ (P ⊃ Q) 3. P ⊃ (Q ⊃ R)/ R 4. Q ⊃ RModus Ponens 1, 3 5. P ⊃ QModus Ponens 2, 4 6. P ⊃ RHypothetical Syllogism 4, 5 7. RModus Ponens 1, 6

     Consider the following argument: No environmentally pro…

     Consider the following argument: No environmentally produced diseases are inherited afflictions. Some psychological disorders are not inherited afflictions. Therefore, some psychological disorders are environmentally produced diseases.      What is the figure of this argument?

What is the correct inference rule for C2? P1.  If humans do…

What is the correct inference rule for C2? P1.  If humans do not have free will, then humans are not morally responsible. P2.  Humans are morally responsible. ∴C1.  Humans do have free will. P3. If humans do have free will, then humans can generate events that are not the effect of a prior cause. ∴C2. Humans can generate events that are not the effect of a prior cause.