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    Carmelics

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    LoyalLoyalJusticeJustice
    Made withinDC&Austin
    Statements
    321,452
    Perspectives
    108,905
    Topics
    42
    Home/Original/inverse
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    Inverse View

    It is not the case that The key to ensuring the applicability of detachment is finding a common substitution instance of the minor premise and the antecedent of the major premise

    ?Set your confidence on the premises below to see your aggregate.

    Reasons For

    2 perspectives
    Reason for 1 of 2
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    • 1.Frege's context principle holds that terms acquire meaning only within propositional contexts, not through isolated substitution matching.
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    • 2.If meaning is context-dependent, then syntactic unification of term-variables underdetermines semantic applicability of detachment.
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    • 3.Therefore, finding a common substitution instance is insufficient without prior semantic grounding of the matched expressions.
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    Reason for 2 of 2
    ?
    • 1.Relevant logicians (Anderson & Belnap) argue that detachment requires a relevance connection between premises, not mere formal unifiability.
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    • 2.A common substitution instance can be found between premises that share no content-relevant connection, as in Lewis's paradoxes of material implication.
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    • 3.Thus syntactic unification is not sufficient to ensure the legitimate applicability of detachment, contra the claim.
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    Reasons Against

    1 perspective
    Reason against
    ?
    • 1.Detachment requires that the minor premise and the antecedent of the major premise be matched
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    • 2.Unification is the process by which such a common substitution instance is found
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