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test chap 9 va 10 mid term ki trc

test chap 9 va 10 mid term ki trc - 2 test the validity b...

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1. A, B, and C are invited to a party. We have the following argument: “B doesn’t go to the party and C goes to the party. If A doesn’t go to the party then neither does C. C goes to the party, but at least one of the others doesn’t go to the party. Therefore, A goes to the party”. a. Using Truth table to verify the validity of this argument. b. From the premises in this argument, does B go to the party? Why. If Jones is guilty then Smith is innocent. Smith is guilty. Therefore, Jones is innocent.
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Unformatted text preview: 2. test the validity. b. All A are B All B are C Some C are D So, All A are D A very special island is inhabited only by knights and knaves. Knights always tell the truth, and knaves always lie. We have the following argument: “It is not the case that ‘Bin is a knave or Kelvin is a knight’. If Allen is a knave then Bin is a knight. Kelvin is a knight or Allen is a knight. Therefore, Kelvin is a knave. a. Using the truth table, check the validity of this argument. b. Is Bin a knight?...
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