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GMAT 考满分题库

GWD - 逻辑CR - 123
A theory is either true or false. Galileo's observations of Jupiter's satellites showed that the Ptolemaic theory of the motion of celestial bodies is false. Therefore, since the Copernican theory of planetary motion is inconsistent with the Ptolemaic account, Galileo's observations of Jupiter's satellites proved the truth of the Copernican theory.

The argument above is open to the objection that it makes the questionable assumption that
  • Awhoever first observed something inconsistent with the truth of the Ptolemaic theory should be credited with having proved that theory false 分析该选项
  • Bthere are some possible observations that would be inconsistent with the account given by the Copernican theory but consistent with the account given by the Ptolemaic theory 分析该选项
  • Cthe Ptolemaic and Copernican theories, being inconsistent, cannot both be based on exactly the same evidence 分析该选项
  • Dnumerous counterexamples were necessary in order to show the Ptolemaic theory to be false 分析该选项
  • Ethe Ptolemaic and Copernican theories, being inconsistent, cannot both be false 分析该选项
显示答案
正确答案: E

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