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What does '"turned in" upon itself' mean? — Preceding unsigned comment added by 188.8.131.52 (talk) 22:17, 22 October 2011 (UTC)
Proposing 'Itself' is not consistent with Wiki involution (philosophy)at article main page ...replace itsself with as stated "oneself" 184.108.40.206 (talk) 20:31, 19 April 2014 (UTC)arnold
I am a little incredulous that this is a serious question, as the answer is quite obvious. However in the spirit of good faith... In the case of an object, one part of the object is bent, or otherwise moved so as to be placed near to, or touching some other part of the object. When you bend the tip of a pizza slice to the crust edge, you are involuting the pizza. The analogy extends to abstract processes. For instance, we are able to use logic to examine logical systems. When we do this we are not trying to determine the truth-value of a sentence given other sentences (which logic helps us do). Rather, we are turning logic in upon itself by determining whether the logical system itself is a consistent one, or a complete one (this is called metalogic). Greg Bard (talk) 22:40, 22 October 2011 (UTC)
The question was certainly serious! Thanks for your good faith and answer. I still think this is not clear, and that a more detailed explanation should be incorporated in the article. 220.127.116.11 (talk) 14:47, 24 November 2011 (UTC)