枯草[已注销]对《Philosophy Bites》的笔记(1)

枯草[已注销]
枯草[已注销] (Subtillion)

在读 Philosophy Bites

Philosophy Bites
  • 书名: Philosophy Bites
  • 作者: David Edmonds/Nigel Warburton
  • 页数: 272
  • 出版社: OUP Oxford
  • 出版年: 2010-8-12
  • 第168页
    when you follow out the consequences of fuzzy logic it says some very implausible things. For example, imagine two identical twins, Fred and Ted, who are going bald in exactly the same way. Whenever one loses a hair, so does the other, their scalps are exactly the same shape, and so on. Suppose that we have reached a point when they are both borderline cases of being bald. They are right in the middle: so the fuzzy logician says that it’s exactly half true and half false that Fred is bald, and exactly half true and half false that Ted is bald. Then it’s an implication of fuzzy logic, given the way the theory works, that it’s also half true to say ‘Fred is bald and Ted isn’t.’ But that’s a completely false description of the situation, because it’s quite clear that if one of them is bald then so too is the other. There is no truth at all to the claim that one of them is bald while the other one isn’t.
    Tim一定没听过禅师讲半杯水的故事。。。(论佛教对哲学的重要性。。。
    2014-12-21 18:12:57 回应