Consider the following flawed arguments and their corresponding reasoning vulnerabilities. Match each argument with the description that most accurately identifies the primary flaw in its reasoning.
- Conservator: The discoloration observed on the seventeenth-century oil canvas must have been caused by photochemical degradation from ultraviolet light, since extensive chemical testing has conclusively eliminated fungal microbial growth as the source of the damage.Takes for granted that two alternative explanations are mutually exhaustive, failing to consider other potential causes.
- Planetary Geologist: If an exoplanet maintains both a dense nitrogen atmosphere and a robust magnetic field, it is guaranteed to shield surface organic compounds from stellar radiation. Thus, because exoplanet HD 189733b lacks a robust magnetic field, its surface organic compounds cannot be shielded from stellar radiation.Treats a condition that is sufficient to guarantee an outcome as though it were necessary for that outcome to occur.
- Operations Analyst: Every single machine unit installed in the regional distribution hub operates with zero mechanical downtime during standard processing hours. Consequently, the regional distribution hub as an integrated operational network must operate with zero mechanical downtime.Concludes that an entire system possesses a certain characteristic merely on the basis that each of its individual components possesses that characteristic.
Cevap
The conservator's argument matches the description of assuming two explanations are exhaustive; the planetary geologist's argument matches the description of treating a sufficient condition as a necessary condition; and the operations analyst's argument matches the description of inferring a property of an entire system from properties of its constituent parts.
Each argument is paired with its precise structural flaw: the conservator falsely restricts the scope of possible causes to two options; the planetary geologist negates a sufficient condition to conclude the absence of the outcome; and the operations analyst erroneously derives a system-wide property directly from properties of individual machine parts.
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Flaw in the Reasoning: Structural Fallacies (False Dilemma, Conditional Sufficiency vs. Necessity, and Composition)
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