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awarded  Good Question
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Jan
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revised Most “simple” $\mu$-recursive function that is not primitive recursive
edited body
Jan
9
asked Most “simple” $\mu$-recursive function that is not primitive recursive
Jan
3
accepted What is (a) geometry?
Dec
8
answered Group-like structures over the integers and functions on them
Dec
8
comment Group-like structures over the integers and functions on them
As an abstract group it surely is (isomorphic) to $\mathbb{Z}$.
Dec
8
revised Group-like structures over the integers and functions on them
edited title
Dec
8
revised Group-like structures over the integers and functions on them
added 30 characters in body
Dec
8
asked Group-like structures over the integers and functions on them
Dec
2
comment Combinatorial puzzle concerning labelled equilateral triangles
What's wrong with the question? Trivial? Home-work? Ill-posed?
Dec
2
asked Combinatorial puzzle concerning labelled equilateral triangles
Nov
4
awarded  Popular Question
Oct
17
asked Graphs that are almost trees
Oct
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