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    Logical entailment requires that a conclusion's truth-con... — Carmelics
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    Supports→Hume's guillotine establishes that no set of purely descriptive 'is' statements can logically entail a normative 'ought' statement without a suppressed normative premise.

    Logical entailment requires that a conclusion's truth-conditions are already contained in premises. Normative and descriptive statements have fundamentally different truth-conditions.

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    Key Terms

    Conclusion(Output of an Argument; may be singular (C) or plural (C1, C2, etc.))
    A logically interconnected result produced by an Argument within a Deduction
    Descriptive statements(as contrasted with normative statements)
    Claims that describe what *actually is* true about the world—just the facts, without any judgment about whether something is good or bad.
    Logical entailment(describing something that logically must follow from a premise)
    A conclusion that must be true if the starting statements are true—it's not just likely, but absolutely required by the rules of logic.
    Normative statements(Deweyan naturalist interpretation)
    Statements to be interpreted as claims regarding what would be desired by persons who understood the nature of their desires and knew the consequences of their desires

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    premises(as used in logic and philosophical arguments)
    Starting statements or assumptions that are used to support a conclusion—like the opening claims in an argument that lead to a final point.
    truth-conditions(Used to characterize views of meaning that the passage argues should be rejected.)
    The conditions under which a sentence or statement is true, which truth-conditional theories identify with sentence meaning.

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    Hume's guillotine establishes that no set of purely descriptive 'is' statements ...

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