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What Logic Is

This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.

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Logic is the study of what follows from what — the standards for distinguishing good reasoning from bad.

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"All humans are mortal. Socrates is human. So Socrates is mortal." Logic explains why that conclusion is guaranteed.

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Logic evaluates reasoning, not truth. Whether Socrates existed is history's job.