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    P=NP is contingent, not necessary: in some possible world... — Carmelics
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    Supports→The inference from 'a polynomial algorithm exists for one NP-complete problem' to 'polynomial algorithms exist for all NP problems' treats existence as a transferable property, but Kripkean possible-worlds semantics demands we specify in which worlds and under which interpretations such algorithms exist.

    P=NP is contingent, not necessary: in some possible worlds it's true, others false. Claiming the inference holds universally ignores modal distinctions.

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    The inference from 'a polynomial algorithm exists for one NP-complete problem' t...

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