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Preliminaries: A Logic Lesson Exam Questions and Answers

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Preliminaries: A Logic Lesson Exam Questions and Answers All true premises; true conclusion: invalid argument: - Answer-Chicago is north of Dallas. (True) Feinberg is mortal. (True) Therefore, all birds have wings. (True) (INVALID) All true premises; false conclusion; invalid argument ...

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  • August 12, 2024
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  • Preliminaries: A Logic Lesson
  • Preliminaries: A Logic Lesson
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Preliminaries: A Logic Lesson Exam
Questions and Answers

All true premises; true conclusion: invalid argument: - Answer-Chicago is north of
Dallas. (True)
Feinberg is mortal. (True)
Therefore, all birds have wings. (True)
(INVALID)

All true premises; false conclusion; invalid argument - Answer-If Bill Gates owned all the
gold in Fort Knox, then he would be wealthy. (True)
Bill Gates does not own all the gold in Fort Knox. (True)
Therefore Bill Gates is not wealthy. (False)
(INVALID)

False premises; true conclusion; valid argument: - Answer-All fish are mammals. (False)
All whales are fish. (False)
Therefore, all whales are mammals. (True)
(VALID)

False premises; true conclusion; invalid argument: - Answer-All dogs have wings.
(False)
All puppies have wings. (False)
Therefore, all puppies are dogs. (True)
(INVALID)

Exception to deductive argument combinations - Answer-An argument cannot have true
premises and a false conclusion and still be valid.

sound argument - Answer-a valid argument with true premises
- a conclusion of such an argument cannot be false

"if... then..." - Answer-also known as "conditional statements

"if" - Answer-antecedent

"then" - Answer-consequent

sufficient condition - Answer-that if the antecedent is true, then the consequent is true.

_________________ is the sign that a conclusion is about to be stated - Answer-
"Therefore"

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