Can you warn your teammates that they are being surprised?
Can a PC with the Alert feat alert his friends?
A cardinal $\kappa$ such that $2^{\lambda}<\kappa$ for all $\lambda<\kappa$ is regular? A cardinal $\kappa$ such that $2^{\lambda}&lt;\kappa$ for all $\lambda&lt;\kappa$ is regular?  I would appreciate very much an answer Sometimes we read books rather quickly and don't give them much (or any) thought, so the action 'reading' does not necessarily imply that we have given enough thoughts to any book we read.   Is there a word that describes reading a book with great care; usually but necessarily slowly over a long period of time. I am looking to display my iPad screen wirelessly to an external display to demo applications.  I found  showing exactly what I want to do with an iPhone but no explanation as to what the hardware dongle used was.  The main thing is that there isn't a wire tethering the user to the external display. What happens when a Wizard loses Intelligence after preparing his spells? A Wizard prepares a number of spells equal to his Wizard level + his Intelligence modifier.  But what happens if he loses Intelligence (the most obvious way I can think of is unattuning to a Headband of intellect and having a base Intelligence score of less than 18) after preparing his spells? Does he...   Lose access to the first [INT mod lost] spells he prepared? Lose access to the last [INT mod lost] spells he prepared? Randomly lose access to [INT mod lost] of the spells he prepared? Keep access to all his prepared spells (but will be able to prepare fewer spells after his next long rest, unless he regains the lost intelligence)? Cannot delete files, nothing seems to work I am on Windows 7.  I have some files on my computer leftover from an old version of Photoshop.  (I think... I don't remember exactly where they came from, but they seem to be Adobe files.)  There are 124 of them in a folder, which I have named "KILL."  (I don't remember what the original name of this folder is, it's been on my comptuer a long time.)  These files seem to be absolutely undeletable, as far as I can tell.  I can move them around and change the name of the folder, but deleting them is out of the question.  I also can't move them onto a different hard drive or flash drive, I've tried that.  So, let me list the things I've tried first:   A whole bunch of different "unlocking programs."  Including: IObit Unlocker, Lock Hunter, FileAssassin, and Project Kill box.  What I use LockHunter I am told: "No processes locking this file or folder have been found."  All of the other programs I've tried give me similar messages, telling me that nothing is locking the files.  Yet when I try to delete the files using LockHunter, I am simply told "Cannot delete x."  No reason is given. Tried using cmd.exe.  Even when I run a command window under administrator, it won't even let me access the KILL folder, much less delete anything.  I also tried killing explorer.exe from the task manager, and then using the cmd window.  Still can't even access that folder. Tried using safe mode in combination with these other options, doesn't change a thing. Tried changing permissions of the files using the security tab under properties.  It simply says "not inherited."  It will not allow me to change a thing. I am definitely the administrator of this computer. Tried Disk Cleanup and Defrag.  I suspected that some files must be damaged or something, but Disk Cleanup wasn't able to find any errors.  Defrag didn't help.   So, let me just say that I am not a computer expert.  But based on all the things I've tried, I suspect that this might be some hardware problem?  It seems strange that these files don't seem to be used by any processes, and yet are absolutely undeletable no matter what I do.  Is there anything else I can try?  Has anyone had any similar experience, and have any idea why this might have happened?  EDIT: Interesting recent development.  As I have toyed with moving the folder around, I moved it to the Program Files folder.  Now that it's there, it suddenly CANNOT be moved nor renamed.  It is stuck there, apparently permanently, as a folder called "KILL."  How irritating. Changing the color of the path in Terminal.app I would like the CasebashMac:bfgenv chris$ part of the following line to appear in a different color in my terminal.  CasebashMac:bfgenv chris$ python I have an image that is Base64 encoded. What is the best way to decode that in Java? Hopefully using only the libraries included with Sun Java 6. Adapt BibTeX style to give all initials I'm using a modification of the plainyr BibTeX style. Although my bib-file contains all initials for some authors (e.g. B.D. McKay), I end up with just the first initial in my document (e.g. B. McKay). I thought about editing the BibTeX style myself, but after seeing the code, I decided against it. Maybe there are some people who are more knowledgeable in this area of expertise.  I want my final document to include the initials for all the names, and not just those of the first name.  This is the relevant code of the BibTeX style, or at least, I think it is the relevant code.  FUNCTION {format.names} { 's :=   #1 'nameptr :=   s num.names$ 'numnames :=   numnames 'namesleft :=     { namesleft #0 &gt; }     { s nameptr "{f.~}{vv~}{ll}{, jj}" format.name$ 't :=       nameptr #1 &gt;         { namesleft #1 &gt;             { ", " * t * }             { numnames #2 &gt;                 { "," * }                 'skip$               if$               t "others" =                 { " et~al." * }                 { " and " * t * }               if$             }           if$         }         't       if$       nameptr #1 + 'nameptr :=       namesleft #1 - 'namesleft :=     }   while$ } When to use “that” and when to use “which”, especially in relative clauses When is it appropriate to use that as opposed to which with relative clauses? I get the following error when I try to typeset a beamer document.  kpathsea: Running mktexpk --mfmode / --bdpi 600 --mag 0+525/600 --dpi 525 mathkerncmssi8 gsftopk: fatal: map file `cid-base.map' not found. mktexpk: don't know how to create bitmap font for mathkerncmssi8. mktexpk: perhaps mathkerncmssi8 is missing from the map file. kpathsea: Appending font creation commands to missfont.log.  ) !pdfTeX error: pdflatex (file mathkerncmssi8): Font mathkerncmssi8 at 525 not found  ==&gt; Fatal error occurred, no output PDF file produced!   But if I remove sansmathaccent.sty from the TeX Live tree, the document typesets fine. Here is a minimal working example.  \documentclass[10pt]{beamer}  \begin{document}  \begin{frame}{A very short beamer document}  $e^{i\pi}+1=0$  \end{frame}  \end{document} The square roots of different primes are linearly independent over the field of rationals I need to find a way of proving that the square roots of a finite set    of different primes are linearly independent over the field of    rationals.    I've tried to solve the problem using elementary algebra  and also using the theory of field extensions, without success. To  prove linear independence of two primes is easy but then my problems  arise. I would be very thankful for an answer to this question. There are several Q&amp;A threads that explain how to download youtube videos using the terminal.  However, I would also like to learn how to extract the video's soundtracks as MP3 files--also using only the terminal.  Answers briefly explaining how to use youtube-dl or other similar utilities before explaining how to extract the MP3 would be ideal for the sake of having all the information in one place--even though this aspect has been covered in other posts. Privilege banner buggy? Or am I just confused? On the main Stack Overflow site, I arrived and had a banner: "Congrats, you've gained the privilege – create wiki posts and 3 other privileges" This confuses me, because I only see two privileges listed at 100%. Is the banner just buggy?  Or is there a better place to see my privileges that the page linked to by that banner? Cannot find my keyboard layout I'm in Belgium (french part) and I cannot find the proper keyboard layout in Settings > Region and Languages > Input Sources.  the closest I found is the french (AZERTY) one but for the symbols such as ! and _ it's not the same keys...  what can I do to solve it ?  Thank you. Array with labeling columns Is there an intelligent way to label (or name) columns in a matrix? I would like to have something like  \[M=\left[\begin{array}{c|cc} 1 &amp; 2 &amp; 3\\ 4 &amp; 5 &amp; 6 \end{array}\right],N=\left[\begin{array}{c|cc} 7 &amp; 8 &amp; 9\\ 10 &amp; 11 &amp; 12 \end{array}\right]\] \[A \ B \ C \ D \ E \ F\]   where A, B,..., F are the labels (or rather names) of the first, second, ..., sixth columns, respectively. What I want is to label A be exactly below the first column, label B be below the second column, etc., of course, nicely aligned. So far I have forced some extra spaces before the labels manually, and also experimented with the \phantom command. Is this true?  If $A$ and $B$ are sets, then $A=\emptyset $ if and only if $B = A \bigtriangleup B$.  If $A=\emptyset$ then $B=\emptyset$ too?  Could someone help me please? How many authors should attend a conference? I wrote a paper with  3 other students regarding my final year project in mechanical engineering. It was recently selected for a conference in NIT Delhi. Minimum one author is required to present and the price is pretty steep for the participation certificate.Should all of us attend the conference or just one of us? Does the certificate hold any value? In Helgason, "Differential Geometry, Lie Groups and Symmetric Spaces"  we have the formula for the exterior derivative  $(p+1)d\omega(X_{1}, \ldots X_{p+1})=\Sigma_{i=1}^{p+1} (-1)^{i+1} X_{i} \cdot \omega(X_{1}, \ldots , \hat{X_{i}}, \ldots X_{p+1})+\Sigma_{i&lt;j} (-1)^{i+j}\omega([X_{i}, X_{j}], X_{1}, \ldots , \hat{X_{i}}, \ldots \hat{X_{j}}, \ldots , X_{p+1})$  but in other sources on-line they have the same formula without the factor of $p+1$ on the left-hand side.  Are there two different definitions of the exterior derivative, or is there an error in Helgason? Change MySQL default character set to UTF-8 in my.cnf? What is the opposite of "preaching to the choir"?