Question: 3. Determine whether the following arguments are valid. pqppppqq 1. 2. 4. Tell which rule of inference is used in each of the following. 1.

3. Determine whether the following arguments are valid. pqppppqq 1. 2.

3. Determine whether the following arguments are valid. pqppppqq 1. 2. 4. Tell which rule of inference is used in each of the following. 1. Hockey is a popular sport. Therefore, hockey is a popular sport or Lions eat Brie cheese. 2. If hockey is a popular sport, then bears play hockey in Russia. Hockey is a popular sport. Therefore, bears play hockey in Russia. 5. Give an argument using rules of inference to show that the conclusion follows from the hypotheses. 1. Hypotheses: If my car is charged, then I will go to the post office. If I go to the post office, I will mail a letter. My car is charged. Conclusion: I mail a letter. 2. Hypotheses: If my car is charged, then I will go to the post office. If I go to the post office, I will main a letter. I do not mail a letter. Conclusion: My car is not charged or I don't own a car

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