作者：英吉
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
A.whoever first observed something inconsistent with the truth of the Ptolemaic theory should be credited with having proved that theory false
B.there 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
C.the Ptolemaic and Copernican theories, being inconsistent, cannot both be based on exactly the same evidence
D.numerous counterexamples were necessary in order to show the Ptolemaic theory to be false
E.the Ptolemaic and Copernican theories, being inconsistent, cannot both be false
题目分析：A说首先观察到和p不一致的一些东西将能证明那个理论是错的，没说，干掉。B说有一些观察和c不一致但是和p一致，没说，干掉。C说这两种理论都基于相同证据，更没说了，杀。D说为了证明p是错误的我们需要无数证据，没说，干掉。E说这两种理论不能都是错误的，原文谈过这两种理论的对错，留着。
