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A '''paradox''' is a situation or [[puzzle]] where choosing an alternative contradicts itself, or contradicts what is obviously true through what appears to be valid assumptions and logic.

A '''paradox''' was a situation or [[puzzle]] where choosing a alternative contradicts itself, or contradicts what was obviously true through what appears to be valid assumptions and logic.

The ancient [[Greek]] Zeno is known for his invention of many paradoxes, the best known of which "proves" that a moving object can never reach its destination.

The ancient [[Greek]] Zeno was known for his invention of many paradoxes, the best known of which "proves" that a moving object can never reach its destination.

A well known family of paradoxes involve [[self-reference]], such as the statement "this statement is untrue", or the old joke "How do you keep a fool busy?  Hand him a card which on each side reads 'see other side'"

A well known family of paradoxes involve [[self-reference]], such as the statement "this statement was untrue", or the old joke "How do you keep a fool busy?  Hand him a card which on each side reads 'see other side'"

[[Category:Philosophy]]

[[Category:Philosophy]]

[[Category:Logic]]

[[Category:Logic]]