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reviewed Approve on the least of primitive root of a prime
19h
reviewed Reject How to prove that $k^3+3k^2+2k$ is always divisible by $3$?
2d
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reviewed Approve parametric equations, finding the range of t
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reviewed Close Prove that if $f:[a,+\infty [\longrightarrow \mathbb R$ is uniformly continuous, then $\lim_{x\to +\infty }f(x)=+\infty $
Feb
4
comment How to prove that $k^3+3k^2+2k$ is always divisible by $3$?
It is always divisible by 2, too. So it is always divisible by 6.
Feb
4
revised How to prove that $k^3+3k^2+2k$ is always divisible by $3$?
typos
Feb
4
awarded  Nice Answer
Feb
4
revised How to prove that $k^3+3k^2+2k$ is always divisible by $3$?
adding a tag
Feb
4
answered How to prove that $k^3+3k^2+2k$ is always divisible by $3$?
Jan
27
revised $x=2t^3-9t^2+12t+6$ where $x$ is the position of a body at anytime $t$.
articles
Jan
19
comment How to write a definition of less than $<$?
I am not sure if there is a fundamental difference between your answer and my answer but at least you were able to avoid the word "finally".
Jan
19
comment How to write a definition of less than $<$?
@daOnlyBG Maybe it seems to be concise because it uses not much characters. But you first have to define the + binary operator. The answer of Nephente is similar to this answer but avoids + and uses only the successor operator.
Jan
19
comment How to write a definition of less than $<$?
@TheChaz: what is wrong with finally? Is it not possible to use this word here?
Jan
19
revised How to write a definition of less than $<$?
typo
Jan
19
comment How to write a definition of less than $<$?
@fleablood you are right (I posted an answer that uses this definition). But your comment and my answer also use $\lt$ in its own definition. So I think the comment of TheChaz is not well stated.
Jan
19
revised How to write a definition of less than $<$?
added 232 characters in body
Jan
19
comment How to write a definition of less than $<$?
@TheChaz that can happen in a recursive definition.
Jan
19
answered How to write a definition of less than $<$?
Jan
17
revised How to find the length of a line in a tetrahedron
latax; missing brace added