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                                      Michael Lee's Mathematics and Physics

Elementary Logic


Logic is divided up into two categories: deductive logic and inductive logic. They differ in the strength of their premise(s) to their conclusion.  With regards to deductive logic, the truth of all the premises guarantees the truth of the conclusion.  Whereas, with inductive logic, the truth of the premises only makes the conclusion "likely."


For example, a dialogue between deductive and inductive reason.

Deductive reason:  "If you don't buy a ticket for the lottery, it is certain you won't win."

Inductive reason retorts:  "And if you buy a ticket for the lottery, I'm almost certain it won't be you!"