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Difficulty: HardErrors of Composition and Division

Consider the following argument:
'Every component manufactured for the prototype aircraft underwent rigorous stress testing and demonstrated exceptional structural resilience under heavy aerodynamic loads. Therefore, the assembled prototype aircraft as a whole will exhibit exceptional structural resilience under identical aerodynamic loads.'

Statement: The argument commits an Error of Composition by assuming that an attribute of each individual component necessarily applies to the entire assembled structure.

Answer: Answer

Answer

True. The argument commits an Error of Composition by transferring a characteristic of individual components to the assembled aircraft as a whole.
The statement correctly classifies the logical flaw. The argument bases its conclusion about the complete aircraft solely on data regarding its isolated subcomponents, failing to account for vulnerabilities created during assembly and system integration.

Step-by-Step Solution

1
Identify the premises and conclusion of the argument.
Premise: Each individual component of the aircraft demonstrated structural resilience. Conclusion: The assembled aircraft as a whole will demonstrate structural resilience.
Separating the evidence from the final claim clarifies the direction of the logical inference.
2
Analyze the direction of the part-to-whole inference.
The reasoning moves from attributes of the individual parts to an attribute of the whole system.
Determining whether the argument moves from part-to-whole or whole-to-part isolates the potential fallacy.
3
Evaluate whether the property is necessarily compositional.
Systemic structural resilience depends on joints, fasteners, and stress distribution between parts, not merely part-level resilience; therefore, the part-to-whole transition is invalid.
Identifying that system-level behavior differs from part-level properties confirms the presence of an Error of Composition.

Key Concept

Error of Composition
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Topics

Errors of Composition and Division

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