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Jan
29
comment Single reference to classical results in analysis.
@David, now believe that there are no problems in the theorem. Thanks for the comment.
Jan
29
revised Single reference to classical results in analysis.
added 267 characters in body
Jan
29
revised how to prove $(-1)\cdot(-1)=1$ based only on the field axioms?
I simplified the demonstration.
Jan
29
revised Single reference to classical results in analysis.
added 63 characters in body
Jan
29
comment Single reference to classical results in analysis.
@David, I repaired the question.
Jan
29
revised Single reference to classical results in analysis.
eliminating small misconceptions and improving the question.
Jan
27
reviewed Close Subgroup of $S_4$ of order 4
Jan
27
revised Dual program is wrong. Authors claim is right.
added 337 characters in body; edited tags
Jan
27
revised Single reference to classical results in analysis.
edited body
Jan
27
comment Single reference to classical results in analysis.
@JohnSteinbeck $D\subset \mathbb{Y}$.
Jan
27
revised Single reference to classical results in analysis.
edited body
Jan
27
revised Single reference to classical results in analysis.
added 20 characters in body
Jan
27
comment Single reference to classical results in analysis.
@sinbadh, books or articles.
Jan
27
asked Single reference to classical results in analysis.
Jan
25
revised Uniform continuity with respect to parameter.
added 39 characters in body
Jan
25
asked Uniform continuity with respect to parameter.
Jan
25
revised Properties of sup and lim inf.
Added more explicit upper bounds for the sequence $a_n$ and comments more enlightening.
Jan
22
comment Limit problem arctg (1 ^ infinty)
Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level.
Jan
22
reviewed Close Limit problem arctg (1 ^ infinty)
Jan
22
reviewed Close Is sequence $x_1=3, x_{n+1}=\frac{x_n}{2}-\frac{2}{x_n}$ bounded?