陈向东逻辑-归纳-不是外向的人也能做演员么

evelyn205205

还是很困惑啊

evelyn205205

困惑困惑

evelyn205205

期待NN！

evelyn205205

迷惑中，望NN指教~

evelyn205205

为什么D不是答案，我觉得D的讲法太绝对了嘛。
期待NN~

evelyn205205

NN们，好迷惑啊~

evelyn205205

up~

sdcar2010

Stimulus: All actors are exuberant people and all exuberant people are extroverts

Actors --> exuberant --> extroverts

So Actors --> extroverts.

Contrapositive:
Not extroverts --> not Actors.

evelyn205205

Stimulus: All actors are exuberant people and all exuberant people are extroverts

Actors --> exuberant --> extroverts

So Actors --> extroverts.

Contrapositive:
Not extroverts --> not Actors.

-- by 会员 sdcar2010 (2011/7/29 20:09:47)

alright，原命题的正确性和逆否命题一致。
But at the very first glance， I thought it was saying too absolutely.