A) Valid B) Invalid 19) P vq 19) -9 A) Invalid B) Valid 20) P v q 20) A) Valid B

Question

A) Valid B) Invalid 19) P vq 19) -9 A) Invalid B) Valid 20) P v q 20) A) Valid B) Invalid Determine if the argument is valid or invalid. Give a reason to justify answer. 21) 21) If I'm hungry, then I will eat. I'm not hungry I will not eat. A) Valid by the law of detachment C) Invalid by fallacy of the inverse B) Valid by the law of contraposition D) Invalid by fallacy of the converse 22) 22) You get soup or you get salad. You got salad. A) Invalid by fallacy of the inverse C) Valid by disjunctive syllogism B) Invalid by fallacy of the converse D) Valid by the law of syllogism 23) 23) If you read, then you will have a high score. You will not have a high score. A) Valid by the law of syllogism C) Invalid by fallacy of the inverse B) Invalid by fallacy of the converse D) Valid by the law of contraposition

Explanation / Answer

21) Option D is correct, the statement that If I am hungry, then I will eat is correct only If am hungry then I will eat. This statement tells nothing about that If I am not hungry. This statement will be false when I am hungry but I am not eating. So converse of the statement is not true hence option D is correct.

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