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Difficulty: Very hardInferences from the Text

Scientific realists posit that successive scientific theories progressively approach objective truth, a narrative significantly challenged by Kuhn’s thesis of methodological incommensurability. If competing paradigms, such as Ptolemaic and Copernican astronomy, deploy fundamentally divergent observational vocabularies and standards for legitimate scientific inquiry, they cannot be arbitrated by a neutral, theory-independent metric. Consequently, Kuhn argues that paradigm shifts represent abrupt gestalt switches rather than cumulative knowledge acquisition. Yet, later epistemic structuralists argue that this view conflates ontological rupture with mathematical discontinuity. They propose that while the entities posited by superseded paradigms may be discarded, the core relational structures captured by their mathematical equations are often retained and subsumed as limiting cases within subsequent frameworks. Thus, a constrained form of scientific accumulation survives, even if the metaphysical commitments of the theories do not.

Based on the passage, which of the following inferences regarding the evolution of scientific theories are logically supported? (Select all that apply.)

  1. Epistemic structuralists would likely concede that the transition between scientific paradigms involves a rejection of the previous paradigm's specific claims about what entities exist in the world.Answer
  2. B
    Epistemic structuralists align completely with scientific realists in the belief that successive scientific theories progressively approach a singular objective truth.
  3. Scientific realists and epistemic structuralists share the premise that scientific history involves a form of knowledge retention across theoretical transitions, despite characterizing that retention differently.Answer
  4. D
    Kuhn employs the concept of a 'gestalt switch' to demonstrate that paradigms evolve through the gradual, cumulative refinement of their observational vocabularies.
  5. E
    The mathematical structures of Ptolemaic astronomy were largely retained and subsumed as limiting cases within Copernican astronomy.

Answer

The correct inferences are that epistemic structuralists concede the rejection of past ontological claims regarding what entities exist, and that both realists and structuralists share the premise that scientific history involves some form of knowledge retention.
The first correct inference is supported because the passage explicitly states that structuralists believe the 'entities posited by superseded paradigms may be discarded' and their 'metaphysical commitments' do not survive, which is logically equivalent to rejecting claims about what entities exist in the world. The second correct inference is valid because both scientific realists (who see progress toward 'objective truth') and epistemic structuralists (who argue 'scientific accumulation survives' via mathematical structures) agree that scientific history involves retaining some form of knowledge across theoretical transitions, even if they describe that retention differently.

Step-by-Step Solution

1
Analyze the epistemic structuralist position on past paradigms.
They acknowledge that 'entities posited... may be discarded' and 'metaphysical commitments... do not [survive].'
To evaluate claims about structuralists rejecting previous theories' assertions about existing entities.
2
Compare the scientific realist and epistemic structuralist viewpoints regarding knowledge accumulation.
Realists believe theories 'progressively approach objective truth,' while structuralists argue 'a constrained form of scientific accumulation survives.'
To determine if both groups share a fundamental premise of knowledge retention across paradigm shifts.
3
Evaluate the remaining options against the text's explicit boundaries.
The incorrect options either misattribute the realist view of 'objective truth' to structuralists, misread the definition of 'gestalt switch,' or assume unstated applications of the structuralist theory to specific historical examples.
To eliminate distractors that rely on unsupported logical leaps or external knowledge.

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Inferences from the Text
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