邏輯問題 - 拼圖

※ [本文轉錄自 Logic 看板]

作者: MingJean (Sunday) 看板: Logic
標題: [問題] 邏輯問題
時間: Thu Apr 1 10:47:28 2004

※ [本文轉錄自 LAW 看板]

作者: MingJean (Sunday) 看板: LAW
標題: [問題] 邏輯問題
時間: Wed Mar 31 11:40:38 2004


21. Steve and JoAnne are both members of a certain club, though
they are not speaking to each other and refuse to work with each other.
Cecily, the club president, is appointing members to the fundraising
committee, but she has resolved that she will not appoint anyone without
his or her explicit consent. Steve tells Cecily,
"I will not consent to appointment on that committee unless
I know whether JoAnne is to be a member of it." And JoAnne says, "
I will not consent to be a member of that committee
unless I know whether Steve will be appointed to it."
If all three of these people stick by these resolutions, then:

A) Neither of them can be appointed to the committee.
B) The situation described in the scenario cannot arise, because it is inherently incoherent.
C) They must either both be appointed or both be left out.
D) The committee may finally have one of them, both of them, or neither of them as members.
E) Either one of them can be appointed, but not both.





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