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Chapter 3

PHI 1101 Chapter 3: PHI 1101 Reading Chapter 3


Department
Philosophy
Course Code
PHI 1101
Professor
Mark Brown
Chapter
3

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CHAPTER 3:
EVALUATING ARGUMENTS
-The worth of any argument depends on two things: (1) the truth or falsity of its
premises and (2) how much support its premises provide the conclusion.
Deductive arguments: -meant to be valid, their premises are meant to guarantee the
conclusion.
Nondeductive arguments: the premises are meant to confer some high degree of
probability on the conclusion.
Valid argument: -one in which there is no possible way for the premises to be true and
the conclusion false at the same time. The truth of premises of a valid argument
completly guarentees the truth of the conclusion.
True premise= true conclusion
NOT VALID IF: true premises and possibility of the conclusion being false.
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