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Deductive Reasoning

Deductive reasoning lies at the heart of human existence. Science, math, psychology, and philosophy are just a few of the fields that study the topic formally, but every person on earth is a student of the subject. Most people use some form of it almost every day of their lives. The ancient Greeks started writing about it more than two millennia ago, and the rest of the world has been studying it ever since.

Deductive reasoning is a process that moves from general statements to specific conclusions. It starts with premises that are believed to be true. If such premises are indeed true and the steps taken to reach a conclusion follow the rules of logic, the conclusion is said to be valid. If the ...

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