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Results tagged with lo.logic
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first-order and higher-order logic, model theory, set theory, proof theory, computability theory, formal languages, definability, interplay of syntax and semantics, constructive logic, intuitionism, philosophical logic, modal logic, completeness, Gödel incompleteness, decidability, undecidability, theories of truth, truth revision, consistency.
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Global Choice bi-interpretable with Global Wellorder?
It's well known and quite trivial that $\sf{ZF}$ with global choice is mutually interpretable with $\sf{ZF}$ plus a global wellordering. However, a much less obvious question is whether the two theori …
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