What is Bad Logic

What is Bad Logic - WhatisBadLogic? SandraLaFave...

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What is Bad Logic? Sandra LaFave West Valley College  An argument has good logic when its premises support its conclusion. When an argument has  good logic, we say its conclusion  follows from  its premises. Bad or incorrect logic occurs when the premises  fail   to support  the conclusion, or the conclusion  does not follow from the premises. It is extremely important that you understand exactly what we mean by “support.” An argument  has good logic when its premises  support  its conclusion. By this we mean either: 1.       That the premises if true  guarantee  the truth of the conclusion.  OR 2.  That the premises if true make the conclusion  likely If an arguer claims support in the first way above, she is said to be arguing  deductively . That is,  when an arguer argues deductively, she is claiming that the conclusion  can’t  be false if the  premises are true.  If an arguer claims support in the second way above, she is said to be arguing 
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This note was uploaded on 11/25/2011 for the course PHIL 001 taught by Professor Woolever,james during the Summer '09 term at West Valley.

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What is Bad Logic - WhatisBadLogic? SandraLaFave...

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