I had recently begun curatorial work here, to improve tag coverage for   I had a number of edits rejected on the grounds they were not substantial. (I actually have an  for the next week)   regards minor grammatical edits and formatting, but not tagging.  I can understand that adding a tag is a tiny addition, in terms of change-delta.. but I'm seeking various perspectives on why it is a conceptually 'insubstantial' difference.    I'm coming at this from the side of a librarian — I want to see good categorization structure.  Is there any way this can be considered in alignment with community policing standards?    Having learned much during my research of this, I think these are the important condensations of the issue:   Re-Tagging Standards:   Editing 'minor' tags with &lt; 2k reputation , which is a waste. En-masse tagging is itself problematic, as it can . Tag additions where the content already contains such keywords is less-substantial than removing a tag on a question .  while yours is pending Excessive editing forces a question into the status of .
When I want to edit a tag of a question I get following message:     Your edit will be placed in a queue until it is peer reviewed.      We welcome all constructive edits, but please make them substantial. Avoid trivial, tiny one-letter edits unless absolutely necessary.   Now the question is: are tag edits (adding a needed tag to an under-untagged, replacing a mis-used tag) substantial enough?  For example the proc-tag-wiki is just about a Ruby feature called proc - but currenlty some questions about Oracle Pro*C (a embedded SQL preprocessor) or the Linux /proc filesystem are also tagged with proc. Btw, what tag should be used for /proc?  Say I come across a Pro*C Question which is tagged with proc - is a change to proc-sql considered substantial or not?
Are there any age limits (formal, informal, or guidelines) that schools use when deciding to accept someone into a PhD program? I'm most curious about the upper age limits. For example, will most schools accept someone in their 40's? How about their 50's? What is the difference between "likelihood" and "probability"? The  claims that likelihood and probability are distinct concepts.     In non-technical parlance, "likelihood" is usually a synonym for "probability," but in statistical usage there is a clear distinction in perspective: the number that is the probability of some observed outcomes given a set of parameter values is regarded as the likelihood of the set of parameter values given the observed outcomes.    Can someone give a more down-to-earth description of what this means?  In addition, some examples of how "probability" and "likelihood" disagree would be nice. Proof of $\pi$ not being a quadratic irrational number. Does someone know a proof (books, articles) that $\pi$ is not a quadratic irrational?   The proof should not use that $\pi$ is transcendental.  Any hints would be appreciated. This is not a duplicate question because I am looking for an explanation directed to a general audience as to the mistakes (if any) in  (reproduced below). (Numberphile is a YouTube channel devoted to pop-math and this particular video has garnered over 3m views.)   By general audience, I mean the same sort of audience as the millions who watch Numberphile. (Which would mean, ideally, making little or no mention of things that a general audience will never have heard of - e.g. Riemann zeta functions, analytic continuations, Casimir forces; and avoiding tactics like appealing to the fact that physicists and other clever people use it in string theory, so therefore it must be correct.)  Numberphile's Proof.  The proof proceeds by evaluating each of the following:  $S_1 = 1 - 1 + 1 - 1 + 1 - 1 + \ldots$   $S_2 = 1 - 2 + 3 - 4 + \ldots $   $S = 1 + 2 + 3 + 4 + \ldots $   "Now the first one is really easy to evaluate ... You stop this at any point. If you stop it at an odd point, you're going to get the answer $1$. If you stop it at an even point, you get the answer $0$. Clearly, that's obvious, right? ... So what number are we going to attach to this infinite sum? Do we stop at an odd or an even point? We don't know, so we take the average of the two. So the answer's a half."   Next:  $S_2 \ \ = 1 - 2 + 3 - 4 + \cdots$  $S_2 \ \ = \ \ \ \ \ \ \ 1 - 2 + 3 - 4 + \cdots$  Adding the above two lines, we get:  $2S_2 = 1 - 1 + 1 - 1 + \cdots$  Therefore, $2S_2=S_1=\frac{1}{2}$ and so $S_2=\frac{1}{4}$.  Finally, take  \begin{align} S - S_2 &amp; = 1 + 2 + 3 + 4 + \cdots           \\ &amp; - (1 - 2 + 3 - 4 + \cdots)          \\ &amp; =   0 + 4 + 0 + 8 + \cdots           \\ &amp; = 4 + 8 + 12 + \cdots           \\ &amp; = 4S \end{align}  Hence $-S_2=3S$ or $-\frac{1}{4}=3S$.  And so $S=-\frac{1}{12}$. $\blacksquare$ How to resize my dual-boot partitions I have a dual-boot laptop with both Windows 10 and Ubuntu 16.04.  Currently, the Windows side has too much disk space, and I want to resize things so that the Ubuntu side has more.  Firstly, I went into the Windows disk management and shrunk the Windows partition by 20GB. I then wanted to expand the Ubuntu partition, but it seemed like this option was greyed out.  Can I expand the Linux partition from Windows or do I need to be in Ubuntu or do I need to create a boot disk and do it that way?  Or do I need third party software?  Any help gratefully received. What software is focused on reviewing and organizing images? It's a standard result that given $X_1,\cdots ,X_n $ random sample from $N(\mu,\sigma^2)$, the random variable $$\frac{(n-1)S^2}{\sigma^2}$$ has a chi-square distribution with $(n-1)$ degrees of freedom, where $$S^2=\frac{1}{n-1}\sum^{n}_{i=1}(X_i-\bar{X})^2.$$ I would like help in proving the above result. Thanks. indicates that the water pipes should bonded to the electrical ground even if a grounding rod is used. How would one normally tell if that is the case? Is that bonding required to be accessible, or can it be hidden behind walls or buried? Where in the water system would it normally be bonded (e.g., before the main water shutoff, after, at the hot water tank)?  I recently had my electrical panel relocated and replaced, and don't recall seeing anything running from the panel to a water pipe - in the old panel or new. The electrician put in an intersystem bonding bridge, so the new ground rod, ground from the panel, and ground from the cable service are connected to it. I suppose that's where the bond from the water pipe would go? How do I read / convert an InputStream into a String in Java? How to prove that $A_5$ has no subgroup of order 30? Can you provide a list of objects that needs to be disposed in SharePoint? Do gravitational waves slow down as they pass through matter? I've heard that gravitational waves travel at the speed of light, and have some parallels to electromagnetic waves.  EM waves slow down as they pass through matter (speed of light in glass is slower than in vacuum, for instance).  Do gravitational waves also slow down as they pass through matter?  If so, are there any effects like  when matter passes through a medium at a speed greater than the velocity of gravity in that medium?  Do large masses like stars or Jupiter act as ball lenses for gravitational waves? How to normalize data between -1 and 1? I have seen the min-max normalization formula but that normalizes values between 0 and 1. How would I normalize my data between -1 and 1? I have both negative and positive values in my data matrix. Can Xcode 6 and Xcode 5 coexist on the same computer? i have a simple sort of a database file which consists only of entries in the following format     variable=value   i want to create a simple vim syntax highlighting for it and set it for specific file extension  for instance, variable part could be light blue, and value part light red  i googled it and came across things such as $vimruntime\syntax\, syntax set=, syntax match, and hi keywords, but couldn't set it up myself eventually  so i want a very simple vim code snippet that would realize it by matching the left and right hand sides and coloring them separately How old is the word "prolly"? Prolly is given this definition at :     Clipped pronunciation of probably.   I was reading an interesting article today that  from 1947 and that surprised me. Unfortunately, I wasn't able to find a listed source for the claim. So how old is prolly? Do plugin files have to follow a specific convention to be "picked up" by WordPress? Let $\pi : \widetilde{X} \longrightarrow X$ be the blow up morphism of $X$ a long of $Y \subset X$, with exceptional divisor $E$ and $\text{dim}Y &gt; 0$,   where $X$ and $Y$ are smooth projectives schemes.   For an answer to a question asked here in the forum (), Blowing up and direct image of line bundle), we have: $$\pi_{*}\mathcal{O}_{\widetilde{X}}(-E) = I_{Y/X} \tag{$**$}$$ here $I_{_{Y/X}}$ denotes the ideal sheaf of $Y$.  $(**)$ was obtained through the following exact sequence: $$0 \longrightarrow \mathcal{O}_{\widetilde{X}}(-E) \longrightarrow \mathcal{O}_{\widetilde{X}} \longrightarrow \mathcal{O}_{E} \longrightarrow  0$$  My doubt is: How to find $\pi_{*}\mathcal{O}_{\widetilde{X}}(-nE)$ for $n \geq 0$? What if $n &lt; 0 $?  Thank you. Proof of continuity of Thomae Function at irrationals. Why don't researchers request payment for refereeing?