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Sep 8, 2016 at 22:00 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 21:49 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 21:40 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 21:32 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 20:48 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 20:25 comment added John @randal'thor, yeah. I gotcha. I'm still thinking.
Sep 8, 2016 at 20:24 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 20:23 comment added Rand al'Thor The foreigner doesn't know the answer until the final person has spoken, because the first five statements aren't enough on their own. (We could have worked this part out logically without having to be told it.) The really important piece of information is that he does know the answer as soon as the final person has spoken. And that's what invalidates the possibilities in the first spoilertag in the current revision of this answer :-)
Sep 8, 2016 at 20:19 history edited John CC BY-SA 3.0
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Sep 8, 2016 at 20:12 history undeleted John
Sep 8, 2016 at 20:00 history deleted John via Vote
Sep 8, 2016 at 19:58 comment added John @randal'thor, Thinking, but, I'm kind of just going on an assumption that the PO is stating part of the premise when they say, we don't know until the final person has answered.
Sep 8, 2016 at 19:54 comment added Rand al'Thor No, because if that's the last answer, then it would also be logically consistent for the 4th speaker and nobody else to be a truth-teller, so the foreigner wouldn't have been able to tell immediately how many truth-tellers there were.
Sep 8, 2016 at 19:53 history answered John CC BY-SA 3.0