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  • 19 votes cast
Feb
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Mar
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Mar
25
accepted How to prove the mathematical induction is true?
Mar
4
awarded  Nice Question
Feb
27
revised How to prove the mathematical induction is true?
added 2 characters in body; edited title
Feb
27
asked How to prove the mathematical induction is true?
Jan
28
accepted Puzzle: digit $x$ appears $y$ times on this piece of paper…
Jan
26
comment Puzzle: digit $x$ appears $y$ times on this piece of paper…
The solution is not unique? There are more solutions?
Jan
26
comment Puzzle: digit $x$ appears $y$ times on this piece of paper…
thanks. You did by trial and error?
Jan
26
revised Puzzle: digit $x$ appears $y$ times on this piece of paper…
edited body; added 77 characters in body; added 4 characters in body
Jan
26
asked Puzzle: digit $x$ appears $y$ times on this piece of paper…
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Dec
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comment Is value of $\pi = 4$?
The last figure said $\pi=4!$ or $\pi=24$ that is absolutely wrong. :-)