@PhilosophyExp Question: All M are P; All the S are M; Therefore, some S are P. Valid/invalid? And does the answer depend on the word "the"?
@mcorliss Invalid. It's the existential fallacy. http://bit.ly/1ArTT7A
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@PhilosophyExp Is there a problem of colloquial vs. technical use of language. "the" implies that some exist, colloquially, no? -
@mcorliss It's contested anyway - even without "the" added. Basically, it's a bit of a cheat! :) -
@PhilosophyExp Oh good, glad to know my righteous indignation is in good company :) Thanks, I enjoy the quizzes and learned something new. -
@mcorliss I put the quiz in front of some pro philosophers. A number of them also protested. And with good reason. Bit of a judgement call
End of conversation
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@PhilosophyExp Maybe I can put my question better: All the As are B, therefore some As are B. Is that still invalid?Thanks. Twitter will use this to make your timeline better. UndoUndo
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