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Sep
8
awarded  Good Answer
Sep
8
revised Closure of the difference of two sets vs difference of their closures
added 17 characters in body
Sep
7
answered The probability of a certain number of trials before a defective object is selected
Sep
7
revised Closure of the difference of two sets vs difference of their closures
added 99 characters in body
Sep
7
answered Closure of the difference of two sets vs difference of their closures
Sep
7
revised Closure of the difference of two sets vs difference of their closures
deleted 11 characters in body; edited title
Sep
7
comment Sum of a geometric series
math.stackexchange.com/q/268434
Sep
7
comment Sum of a geometric series
@DavidH This might be an understatement... :-)
Sep
7
comment Does a $\sigma$-finite measure always admit a countable partition whose components are uniformly bounded from below and/or above?
This reproduces an earlier comment by another user without saying so and leaves the (more interesting) question of the lower bound unsolved.
Sep
6
comment Suppose the complement $\overline {G}$ of $G$ has size $\overline{m}$. Show that either $m >1/2 (nC2)$ or $\overline{m}>1/2(nC2)$
Sorry, see revised version, hopefully more explicit.
Sep
6
revised Suppose the complement $\overline {G}$ of $G$ has size $\overline{m}$. Show that either $m >1/2 (nC2)$ or $\overline{m}>1/2(nC2)$
added 32 characters in body
Sep
6
comment I need help with a limit proof
Please no excuse for the time you took--on the contrary!
Sep
6
comment Limit using Stirling's formula
No idea, this must be in quite a few textbooks about Riemann integration I guess.
Sep
6
comment I need help with a limit proof
egarro: If you got this point, everything is fine (although the fact that you use he term "an approximation", quite unrelated, worries me slightly in this respect...).
Sep
6
comment I need help with a limit proof
@barakmanos You seem to like to declare unilaterally that your point of view or your (unspecified) own approaches would be "simpler". This is a pleasure I can understand, but here is my advice: do not overdo it... :-)
Sep
6
comment I need help with a limit proof
@barakmanos Here is a thought experiment: let us wonder why this homework was given to the OP. My guess is that the reason was to emphasize the importance of the domain of definition of functions when considering limits. Here, the function $f$ is not $\mathbb C\to\mathbb C$, $z\mapsto z+1$ hence every solution which passes over this technicality is, IMHO, misleading.
Sep
6
comment I need help with a limit proof
@GitGud Ah OK, thanks. Then, no, the minimum is not necessary and the choice $\delta=\varepsilon$ is all right.
Sep
6
comment Limit using Stirling's formula
Sure: the definition of small-o (say, the one the WP page gives).
Sep
6
comment I need help with a limit proof
egarro ?? Narrow epsilon? Take the minimum? Sorry but what are you talking about? These are not in my proof anyway.
Sep
6
comment I need help with a limit proof
Sorry but to consider some $\varepsilon(\delta)$ reflects a deep misconception about the notion of limit.