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    Henkin's completeness proof requires witnesses for existe... — Carmelics
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    Supports→The Henkin construction assumes all sorts are non-empty, but many-sorted logic permits empty sorts in some formulations.

    Henkin's completeness proof requires witnesses for existential formulas, necessitating non-empty domains for each sort to guarantee such witnesses exist.

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    The Henkin construction assumes all sorts are non-empty, but many-sorted logic p...

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