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    If some sign-inferences derive their epistemic force from... — Carmelics
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    Challenges→There is only one mode of sign-inference.

    If some sign-inferences derive their epistemic force from logical necessity rather than accumulated observation, the inferential modes are irreducibly plural.

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    1 reason for
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    Reasons For

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    Reason for
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    • 1.Logical necessity (like modus ponens) operates independently of empirical frequency; observation cannot ground what holds in all possible worlds.
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    • 2.If all inference modes shared one epistemic source, we could not explain why deductive and inductive arguments warrant different confidence levels.
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    • 3.Mathematical proof and perceptual inference have structurally distinct justificatory mechanisms that cannot be reduced to a single principle.
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    Reasons Against

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    Reason against
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    • 1.Logical necessity itself may be grounded in regularities of how our cognitive systems evolved to process information reliably.
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    • 2.The claim conflates epistemic force (justification) with semantic source; plural justifications needn't entail irreducibly plural inferential modes.
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    • 3.Even deductive inference requires accumulated experience that logical symbols refer to anything; pure logic proves nothing about the world.
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    Related

    Even deductive inference requires accumulated experience that logical symbols re...If all inference modes shared one epistemic source, we could not explain why ded...Logical necessity (like modus ponens) operates independently of empirical freque...Logical necessity itself may be grounded in regularities of how our cognitive sy...
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    Mathematical proof and perceptual inference have structurally distinct justifica...The claim conflates epistemic force (justification) with semantic source; plural...There is only one mode of sign-inference.

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    2 (1 for, 1 against)
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