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Zorluk: Çok zorParallel Reasoning and Parallel Flaw

Most civic buildings commissioned under the new urbanist initiative incorporate brutalist concrete facades. Moreover, most structures that incorporate brutalist concrete facades suffer from significant moisture retention issues. Therefore, at least some civic buildings commissioned under the new urbanist initiative suffer from significant moisture retention issues.

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

  1. Most classical symphonies composed in the minor key evoke a profound sense of melancholy in listeners. Furthermore, most musical pieces that evoke a profound sense of melancholy in listeners feature an unusually slow tempo. Thus, it logically follows that some classical symphonies composed in the minor key feature an unusually slow tempo.Cevap
  2. B
    Most civic buildings commissioned under the new urbanist initiative are designed by prominent local architects. Furthermore, all public structures designed by prominent local architects utilize sustainably sourced timber. Therefore, most civic buildings commissioned under the new urbanist initiative utilize sustainably sourced timber.
  3. C
    Most vintage automobiles produced in the 1920s require highly specialized mechanical maintenance. However, only some vehicles that require highly specialized mechanical maintenance are prohibitively expensive for collectors to insure. Consequently, some vintage automobiles produced in the 1920s are prohibitively expensive for collectors to insure.
  4. D
    All dietary supplements containing synthesized ginkgo biloba are subject to the newly enacted federal labeling regulations. Furthermore, most consumer products subject to the newly enacted federal labeling regulations experience a temporary drop in retail sales. Therefore, most dietary supplements containing synthesized ginkgo biloba experience a temporary drop in retail sales.
  5. E
    Most internationally successful tech startups rely heavily on aggressive venture capital funding. Similarly, most aggressive expansion strategies in the logistics sector rely heavily on aggressive venture capital funding. Thus, some internationally successful tech startups must utilize aggressive expansion strategies in the logistics sector.

Cevap

The correct choice is the argument concerning classical symphonies in the minor key.
The correct argument regarding classical symphonies exactly replicates the 'Most A are B; Most B are C; Therefore, Some A are C' abstract structure of the stimulus. It flawlessly mimics the specific logical error that presumes the overlap between two distinct 'most' subsets is mathematically guaranteed.

Adım Adım Çözüm

1
Analyze the logical structure and identify the precise flaw in the stimulus argument.
The stimulus structure translates to: Most A (civic buildings) are B (brutalist facades). Most B are C (moisture issues). Conclusion: Some A are C. This is an invalid quantifier syllogism because the subset of B that intersects with A is not guaranteed to overlap with the subset of B that intersects with C.
Deconstructing the abstract formal structure of the stimulus is mandatory for finding a parallel logical flaw.
2
Evaluate the options to immediately eliminate arguments with logically valid deductions or identical subject matter.
The argument concerning civic buildings and sustainably sourced timber can be eliminated. Despite mimicking the topic, its logic (Most A are B; All B are C; Therefore, Most A are C) is fundamentally sound, not flawed.
A parallel flaw question requires the correct answer to contain an invalid argument.
3
Examine remaining choices for exact quantifier matches regarding strength and scope.
The option regarding vintage cars incorrectly uses 'some' instead of 'most' in its second premise. The ginkgo biloba option incorrectly uses 'all' instead of 'most' in its first premise.
Parallel reasoning requires identical quantifier strength; 'most' cannot be structurally swapped for 'some' or 'all'.
4
Check the structural alignment and position of the middle terms in the final remaining choices against the stimulus.
The tech startups argument incorrectly places the shared middle term ('venture capital funding') as the predicate in both premises (Most A are B; Most C are B). The symphonies argument properly links them sequentially (Most A are B; Most B are C), perfectly mirroring the original flaw.
The exact syntactic alignment of formal terms is critical to replicating the specific logical fallacy.

Anahtar Kavram

Quantifier Logic and Formal Syllogistic Flaws
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