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Philosophy: Logic Start‑class Low‑importance

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	Logic

A fact from Pinocchio paradox appeared on Wikipedia's Main Page in the Did you know column on 17 February 2011 (check views). The text of the entry was as follows:

Did you know... that Pinocchio's sentence "My nose grows now" could be neither true nor false, which means his nose grows if, and only if, it does not grow?

A record of the entry may be seen at Wikipedia:Recent additions/2011/February.

Wikipedia

False premise

But if he says "My nose grows now." a second time, after having noticed that it didn't grow the first time he said it, he would be lying. His nose would therefore grow. If he then said it again in the belief that it would keep growing, the statement would no longer be a lie and it would again not grow.

Basically, his nose would grow whenever he believed it wouldn't while uttering that statement.

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+=== False premise ===
+But if he says "My nose grows now." a second time, after having noticed that it didn't grow the first time he said it, he would be lying. His nose would therefore grow. If he then said it again in the belief that it would keep growing, the statement would no longer be a lie and it would again not grow.
+Basically, his nose would grow whenever he believed it wouldn't while uttering that statement.