讨论：这个题目大家选什么

sophia1015

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

gonghao

E is right answer.

ABD is nothing and could be put out of the way very soon.

C is a paradox choice but same evidence is not disscussed in the question.Or if C is ture,different evidence does not mean contradictive basement of theories.So when C is wrong,we can not conclude that  is right. 

sophia1015

Thank you indeed for your help!

But I still cannot fully understand...