Saturday, September 8, 2012

Syllogisms

What I thought was interesting in this chapter were all the different types of arguments and syllogisms that were mentioned. A syllogism is a form of deductive argument that presents two supporting premises which are followed by a conclusion. An example would be; all men are mortal, all fathers are men, therefore all fathers are mortal. I thought it was interesting how the book seemed to break down the deductions we make. I never really thought about how knowing one thing for certain can lead to us knowing several other things through association and reasoning. Of course, as the chapter went on to explain, not all premises are correct which makes their syllogisms invalid. The books give the example argument; all men are tall people, tom cruise is a man, therefore tom cruise is a tall person. This would be an example of how one false premise can make a syllogism invalid. The incorrect premise of all men are tall people is what ruined the argument.

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