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awarded  Popular Question
Jan
2
comment Prove that function defines a contraction
Makes much more sense now :)
Jan
2
comment Prove that function defines a contraction
I'm talking about "since $ \sqrt x>1 $ ." in your answer, but thanks for explanation!
Jan
2
comment Prove that function defines a contraction
Sorry, if I understand correctly, square root of x is greater or equal than 1, isn't it?
Jan
2
comment Prove that function defines a contraction
Thank you, I like your approach more than one in the book.
Jan
2
awarded  Supporter
Jan
2
comment Prove that function defines a contraction
Thank you for fast answer! I still wonder where that substitution comes from, but at least I can understand the proof now.
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accepted Prove that function defines a contraction
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