The Logic reference article from the Simple Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Logic

Logic is the science of reasoning. Logic helps people decide whether something is true or false.

A popular example: If a human is a mammal, and Aristotle is a human, then Aristotle is a mammal.

This is the rule: If A=B, and B=C, then A=C.

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