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    Logical consequence preserves truth but not psychological... — Carmelics
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    Challenges→A mediated judgment m is certain for a person A if m is inferred from a set of certain premises μ as a logical consequence

    Logical consequence preserves truth but not psychological certainty, since a valid inference can produce doubt if the inferential step itself is uncertain.

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    1 reason for
    1 reason against

    Reasons For

    1 perspective
    Reason for
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    • 1.Truth preservation is a formal property independent of the reasoner's mental state or confidence level in premises.
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    • 2.Uncertainty about inference rules (e.g., modus ponens) can coexist with logically valid deductions that preserve truth values.
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    • 3.Psychological certainty depends on factors like cognitive biases and background knowledge, not just logical validity.
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    Reasons Against

    1 perspective
    Reason against
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    • 1.If an inferential step is genuinely uncertain, we lack sufficient justification to claim the conclusion preserves the premises' truth.
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    • 2.Truth preservation requires confidence in the inference rule itself; doubt about validity undermines the truth-preservation claim.
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    • 3.Practical reasoning conflates logical validity with epistemic justification—doubt about steps makes conclusions epistemically unreliable.
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    Truth & Knowledge1 linkedSkepticism1 linked

    Related

    A mediated judgment m is certain for a person A if m is inferred from a set of c...If an inferential step is genuinely uncertain, we lack sufficient justification ...Practical reasoning conflates logical validity with epistemic justification—doub...Psychological certainty depends on factors like cognitive biases and background ...
    +3 moreShow less
    Truth preservation is a formal property independent of the reasoner's mental sta...Truth preservation requires confidence in the inference rule itself; doubt about...Uncertainty about inference rules (e.g., modus ponens) can coexist with logicall...

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    claim
    Perspectives
    2 (1 for, 1 against)
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