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Questions tagged [consistency]

A system of formal logic is consistent if false is not deducible in the system. (from nLab).

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Unintentionally proven false theorem with type-in-type outside logic and foundations?

We are all familiar with Russell's paradox, and it is known that Per Martin-Löf proved that type-in-type is normalizing and consistent (which is false), by accidentally using an assumption in his meta-...
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