For each of the following brief argumentative excerpts, identify the statement that most accurately characterizes its central logical defect by matching each excerpt with its corresponding flaw description.
- Mayor: The city council must either approve the proposed commercial zoning ordinance or allow downtown retail to collapse entirely. Because allowing downtown retail to collapse is unacceptable, the council must pass the ordinance.Treats two extreme possibilities as the only available options when intermediate or alternative courses of action remain possible.
- Publicist: Our firm possesses a legal right to free expression. Because doing what is right cannot be subject to moral condemnation, no one can legitimately criticize our promotional campaign.Trades upon an ambiguity by conflating a legal entitlement with moral correctness.
- Historian: Dr. Vance, an internationally recognized authority in quantum physics, asserts that Bronze Age agrarian trade networks were exclusively riverine. Therefore, we should accept that these ancient trade networks were exclusively riverine.Cites the endorsement of an authority figure whose expertise lies in a domain unrelated to the subject under discussion.
- Architect: Every individual structural beam selected for this municipal pavilion is exceptionally lightweight. It follows that the finished pavilion structure will itself be exceptionally lightweight.Concludes that a composite entity must possess a specific attribute simply because each of its constituent parts possesses that attribute.
Cevap
The excerpt regarding municipal zoning matches the description of treating two extremes as the only options; the excerpt regarding the publicist matches the description of conflating legal entitlement with moral correctness; the excerpt regarding ancient trade networks matches the description of appealing to an expert outside their field; and the excerpt regarding pavilion beams matches the description of improperly attributing a property of parts to the whole structure.
Each excerpt demonstrates a classic, well-defined reasoning error: the zoning argument overlooks other solutions by setting up an artificial either/or dichotomy; the publicist argument equivocates on the meaning of 'right'; the history argument relies on an authority speaking outside their specialty; and the pavilion argument commits the composition error by presuming the whole possesses the characteristics of its individual parts.
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Anahtar Kavram
Identifying informal and formal fallacies in short arguments, including false dilemma, equivocation, appeal to inappropriate authority, and fallacy of composition.