--  作者：ponny
--  发布时间：2004-8-3 10:55:00

--  超级困惑：假设怎么会成了充分条件？

last:

The workers at Bell Manufacturing will shortly go on strike unless the management increases their wages. As Bell’s president is well aware, however, in order to increase the worker’s wages, Bell would have to sell off some of its subsidiaries. So, some of Bell’s subsidiaries will be sold.

The conclusion above is properly drawn if which one of the following is assumed?

(C) The workers at Bell Manufacturing will not be going on strike.

这道题，子公司出售，是涨工资的必要条件，涨工资是不罢工的必要条件。因此子公司出售是不罢工的必要条件。不罢工　推出　子公司出售，那假设：不罢工　成了充分条件了。可是书上说假设应该是结论的必要条件啊！

这里的推理是陈向东的书中给出的。