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Zorluk: KolayParallel Reasoning and Parallel Flaw

If a manuscript contains original historical documents, it is placed in the rare archives collection. This manuscript has been placed in the rare archives collection; therefore, it must contain original historical documents.

The flawed pattern of reasoning in the argument above is most similar to that in which of the following?

  1. A
    Every archival library stores rare manuscripts in climate-controlled vaults. The municipal branch is an archival library, so it stores its rare manuscripts in climate-controlled vaults.
  2. B
    If a restaurant uses imported spices, its head chef prepares the daily tasting menu. The Bistro does not use imported spices, so its head chef does not prepare the daily tasting menu.
  3. If a company produces organic juice, it must obtain an agricultural certification. FreshGrove obtained an agricultural certification, so it must produce organic juice.Cevap
  4. D
    If a bicycle is designed for racing, it has lightweight carbon wheels. This commuter bicycle does not have lightweight carbon wheels, so it cannot be designed for racing.
  5. E
    Most historic preservation societies receive municipal grants if they restore landmark buildings. Heritage Trust restores landmark buildings, so it will definitely receive every available municipal grant.

Cevap

The argument concluding that FreshGrove must produce organic juice because it obtained an agricultural certification commits the identical flaw of affirming the consequent (mistaking a necessary condition for a sufficient condition).
The argument concluding that FreshGrove produces organic juice commits the identical error of affirming the consequent. The initial conditional statement establishes that producing organic juice requires obtaining an agricultural certification (Organic Juice -> Certification). The argument then affirms that the certification was obtained and erroneously concludes that the company must produce organic juice.

Adım Adım Çözüm

1
Analyze and diagram the conditional structure of the stimulus.
Premise 1: Contains original documents -> Placed in rare archives. Premise 2: Placed in rare archives. Conclusion: Contains original documents.
Diagramming reveals the formal defect: affirming the necessary condition to conclude the sufficient condition must have occurred.
2
Identify the specific reasoning flaw.
The argument treats being placed in rare archives as a guarantee of containing original documents, committing a Mistaken Reversal (affirming the consequent).
Parallel flaw items require finding an answer choice with the exact same directional error.
3
Evaluate the choices to locate the structurally isomorphic conditional error.
The argument regarding FreshGrove diagrams as: Produces organic juice -> Agricultural certification. FreshGrove has certification; therefore, FreshGrove produces organic juice.
This choice exhibits the exact same premise-to-conclusion structure and conditional defect as the stimulus.

Anahtar Kavram

Parallel Flaw: Affirming the Consequent / Mistaken Reversal
Tahmini Süre:1m 0s
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Konular

Parallel Reasoning and Parallel Flaw

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