Question 12 A valid argument may not have all true premises and a false conclusion true premises and a true conclusion false premises and a false conclusion none of the above
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Step 1: A valid argument is an argument where the conclusion logically follows from the premises. Show more…
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Select the best answer. If an ordinary truth table is constructed for an invalid argument, then a. There must be at least one line that has false premise(s) and true conclusion. b. There may be one line that has true premise(s) and false conclusion. c. There is no line that has true premise(s) and false conclusion. d. There must be exactly one line that has true premise(s) and false conclusion. e. There must be at least one line that has true premise(s) and false conclusion.
Adi S.
2. If a deductive argument is valid and all of its premises are true, then a. The conclusion must be true b. The conclusion is probably true c. The argument must be sound d. None of the above 3. If a deductive argument has a false premise, then a. The conclusion must be false b. The argument must be invalid c. The argument must be unsound d. None of the above 4. If a deductive argument has a false conclusion, then a. The argument must have a false premise b. The argument must be invalid c. The argument must be unsound d. None of the above 5. If a deductive argument has all true premises and a false conclusion, then a. The argument must be invalid b. The argument must be unsound c. Both a and b d. None of the above
Sri K.
10. True or False? Use your knowledge of truth tables for arguments to determine which of the following statements are true. Check all that apply. An argument with inconsistent premises must be invalid. It is possible for an invalid argument to have premises and a conclusion that are all self-contradictory statements. It is possible for a valid argument to have a single premise that is contradictory to its conclusion. If a truth table for an argument shows at least one line in which all the premises are true and the conclusion is false, then the argument is valid. Any argument having inconsistent premises is an invalid argument, regardless of what its conclusion is. If an argument in propositional logic is valid, then the argument's corresponding conditional (which is a conditional consisting of the conjunction of the argument's premises as its antecedent and the argument's conclusion as its consequent) is a tautology. Any argument having inconsistent premises is a valid argument, regardless of what its conclusion is. If a truth table for an argument shows at least one line in which all the premises are true and the conclusion is false, then the argument is invalid. If an argument in propositional logic is valid, then the argument's corresponding conditional (which is a conditional consisting of the conjunction of the argument's premises as its antecedent and the argument's conclusion as its consequent) is a self-contradictory statement. It is possible for an argument to have consistent premises and be invalid.
Madhur L.
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