Delete votes shouldn't reset if OP deletes question himself
Self-deletion and un-deletion without any changes should reinstate the original close/delete votes
Does a creature with Lifelink provide lifegain equal to its power, or the defender's toughness? I am a US citizen and have recently visted the UK  with simply a passport which allowed me to vist for 6months I have heard rumors that I am obligated to stay in the US for a Equal amount of time that I have visited the UK before I am able to return, but I am struggling tour no any proof of this obligation .. Am I missing somthing or is it simply not true I hear a lot of talk about apparmor, I want to know the following:    What is apparmor? How does apparmor work? How much money do I need to show as proof of support when applying for a UK Standard Visitor visa? I am an Indian citizen studying in Italy on an Italian visa that expires 19 November, 2015. I have permesso di soggiorno. I want to visit the United Kingdom for my vacations for a week during March. I know the procedures already, however I am a little bit confused about the amount that I must show as a proof of support with my bank statements. I will stay for a week with my friends who are also students in Italy and will be in London for 5 days. What would be the amount in Euros that I need to show for my visit to UK? Alright, when I run certain commands the wrong way, (misspelled, etc.) The terminal outputs this: &gt; instead of computername:workingfolder username$, and when I type enter it goes like this:  &gt;  &gt;  &gt;   That would be if I pressed enter 3 times. What's the intuition behind difference of $\neg(S\land E)$ and $\neg S \land \neg E$? Let $S$ represent the English statement "Sales will go up."And let $E$ represent the English statement "Expenses will go up." Now my problem is that I have trouble telling the difference between these two statements: $\neg(S\land Q)$ and $\neg S \land \neg E$. When these two statements are translated into English they sound,to me, the same. However, when you look at their truth tables they are different.   Here is my best translation of these two statements:  1) $\neg(S\land E)$ represented in English, "Both sales and expenses will not go up."(Correct me if I translated it wrong)  2)$\neg S \land \neg E$ represented in English, "Expenses will not go up and sales will not go up."(Again, correct me if I'm wrong)  I still do not understand the difference between these two statements in the English representation. They both sound the same thing to me.  Once more, I have the same trouble I have with understanding with the or-connective( $\lor$ ). Again let E and S be the same statements as before.Tell me if I might have translated them wrong.  1) $\neg (S \lor E)$ represented in English is "Neither sales nor expenses will go up."  2)$\neg S \lor \neg E$ represented in English is "Sales will not go up, or Expenses will not go up."  Yet I still have trouble understanding the difference between the English translation.  In short, can you give me some alternative example that better explains the difference, something intuitive that gives me a clear picture of the difference of the meaning between the statements I showed with the connective-or and connective-and. Thank you. If angular velocity & angular acceleration are vectors, why not angular displacement? Are angular quantities vector?   ... It is not easy to get used to representing angular quantities as vectors. We instinctively expect that something should be moving along the direction of a vector. That is not the case here. Instead, something(the rigid body) is rotating around the direction of the vector. In the world of pure rotation,a vector defines an axis of rotation, not a direction in which something moves.   This is what my book (authored by Halliday, Walker, Resnick) says. But they mentioned with a caution that      Angular displacements cannot be treated as vectors. ....to be represented as a vector, a quantity must also obey the rules of vector addition..... Angular displacements fail this test.   Why do they fail in this test? What is the reason? This is Ubuntu server 10.04 64 and samba 3.4.7.  I have a shared directory /home/mit/share and another one /home/temp that I link into the shared one:  ln -s /home/temp /home/mit/share/temp   But on windows, after using internet, I cannot open S:/temp, but on Linux it is possible to access /home/mit/share/temp like expected.   This works if I link directories inside /home/mit/share/temp, so I guess samba is restricting to jump with a link outside/above the shared directory.   EDIT:  See also this question titled .  It seems best to put unix extensions = no into the global section and follow symlinks = yes and wide links = yes only into the shares section, where you really need it.  The unix extension flag has to live in the global section and not in the individual shares sections. But for security reasons it is better to use the other options only where you need it, and not globally. Probability that no two consecutive heads occur? A fair coin is tossed $10$ times. What is the probability that no two   consecutive tosses are heads?   Possibilities are (dont mind the number of terms):  $H TTTTTTH$, $HTHTHTHTHTHTHT$.  But except for those,  let $y(n)$ be the number of sequences that start with $T$  $T _$, there are two options, $T$ and $H$ so,  $y(n) = y(n - 1) + x(n-1) = y(n - 1) + y(n - 2)$  Let $x(n)$ be the number of sequences that start with $H$,   $H _$ the next option is only $T$ hence,  $x(n) = y(n - 1)$   The total number of sequences $F(n)$ is:  $$F(n) = y(n) + x(n) = 2y(n - 1) + y(n - 2)$$  We are after $F(10)$,  $$F(10) = 2y(9) + y(8)$$  $$F(3) = 2y(2) + y(1) = 1 + 4 = 5$$  $$F(4) = 2y(3) + y(2) = 6 + 2 = 8$$  But I'm not quite sure where this will take me though. ShareLaTeX compilation flags Is it possible and if so how can you pass flags to the ShareLaTeX compiler which one would have passed as parameters to the LaTeX compiler?  I am using the minted package and need to pass the -shell-escape flag. Expected number of rolling a pair of dice to generate all possible sums A pair of dice is rolled repeatedly until each outcome (2 through 12) has occurred at least once. What is the expected number of rolls necessary for this to occur?  Notes: This is not very deep conceptually, but because of the unequal probabilities for the outcomes, it seems that the calculations involved are terribly messy.  It must have been done already (dice have been studied for centuries!) but I can't find a discussion in any book, or on line. Can anybody give a reference? This question is about why we have a universal speed limit (the speed of light in vacuum). Is there a more fundamental law that tells us why this is? I'm not asking why the speed limit is equal to $c$ and not something else, but why there is a limit at all. EDIT: Answers like &quot;if it was not..&quot; and answers explaining the consequences of having or not having a speed limit are not--in my opinion-- giving an answer to whether there is a more fundamental way to derive it from a law to explain this limit. Word for someone who repeats words How to correctly use the present perfect tense This  states that:  When you use the present perfect tense you have to be talking about a period of time that you still consider to be going on. For example, if it’s still morning, you can say, &quot;I’ve shaved this morning.&quot; If it is afternoon or evening, all of a sudden &quot;I’ve shaved this morning&quot; sounds really weird.  &quot;I've shaved this morning&quot; sounds more like past perfect, and indication of specific time (in the morning) makes this sentence incorrect.  Am  I spot on? Then what is the difference between the construct of past perfect, present perfect and future perfect? How does $e^{i x}$ produce rotation around the imaginary unit circle? This query works for me when I tried in PG admin query tool:    UPDATE bankdetails SET bank_details = 'mysore' ,"PAN"= 123,bank_acc = 456,                        "UAN"=789,tax = 'myy' WHERE  user_id = 79; INSERT INTO bankdetails (user_id,bank_details,"PAN",bank_acc,"UAN",tax)        SELECT 79,'mysore',123,456,789,'myy'        WHERE NOT EXISTS (SELECT 1 FROM bankdetails WHERE user_id=79);   Later I implemented in my code like this:  db.query('UPDATE bankdetails SET bank_details = $2 ,"PAN"= $3,bank_acc = $4,"UAN"=$5,tax = $6 WHERE user_id = $1; INSERT INTO bankdetails (user_id,bank_details,"PAN",bank_acc,"UAN",tax) SELECT $1,$2,$3,$4,$5,$6 WHERE NOT EXISTS (SELECT 1 FROM bankdetails WHERE user_id = $1);', [companyuser.rows[0]._id, data.bankDetails.bank_details, data.bankDetails.PAN, data.bankDetails.bank_acc, data.bankDetails.UAN, data.bankDetails.tax],function(err,bank) {                  if (err) return callback(new Error('error')); })   it says:     cannot insert multiple commands into a prepared statement   Can some one guide me here? Context  I'm having trouble understanding the limited situations in which qualifiers can be distributed.  I am given that the rules are:  $$\forall x\left[P(x)\land Q(x)\right]\equiv\forall xP(x) \land\forall xQ(x) \tag{1}$$ $$\exists x\left[P(x)\lor Q(x)\right]\equiv\exists xP(x) \lor\exists xQ(x) \tag{2}$$  $$\forall x\left[P(x)\lor Q(x)\right]\not\equiv\forall xP(x) \lor\forall xQ(x) \tag{3}$$ $$\exists x\left[P(x)\land Q(x)\right]\not\equiv\exists xP(x) \land\exists xQ(x) \tag{4}$$    Questions   What are examples of $P(x)$ and $Q(x)$ that illustrate when these statements are true? How can I show these statements always hold using proofs? Why can't "$\forall x$" be distributed in example 3 or "$\exists x$" in example 4? How can I get the node id the comment is attached to in hook_comment_insert?  I tried the following code:  function mymodule_comment_insert(Drupal\Core\Entity\EntityInterface $entity) {   if ($entity-&gt;bundle() == 'comment_custom' &amp;&amp; $entity-&gt;get('entity_type')-&gt;value == 'node') {      // Below returns empty, because "$entity-&gt;get('entity_id')-&gt;value" is empty.     $node = Node::load($entity-&gt;get('entity_id')-&gt;value);      // No luck with this one too.     $node = \Drupal::routeMatch()-&gt;getParameter('node');    } } So a company decides to raise money by selling shares of its stock. The stock is offered at an initial price of their determination. The stock is then traded in a market where forces of supply and demand, as well as speculation, affect its price.  When a company performs well (or makes decisions that will likely increase the company's earnings in the future), more people want to buy that stock than do people wanting to sell it. This creates demand for that stock which causes its sell/bid prices rise. When a company performs poorly, the opposite occurs; more people want to sell the stock than want to buy. This creates a surplus that causes sell/bid prices to fall.  Understanding this, people speculate over company performance to determine the future behavior of a stock, and attempt to "buy low, sell high" or "borrow high, return low" in order to make a profit.  But my question is regarding the first part of that process. What is it about company performance that causes the perceived value of its stock to rise? This is especially perplexing since I would guess that most people don't exercise their voting rights, and many stocks don't pay dividends.  It's not like a shareholder has any direct financial gains from increased company earnings (speculative stock pricing notwithstanding).  What is the intrinsic value of the stock?  It seems to me that all participants in a stock market tacitly agree that stock price will have a direct correlation with company performance. So another way of asking the question is, would an opposite agreement hold? What financially (this isn't a question about logistics, communication, or feasibility) stops all participants in a market from agreeing to value a particular company's stock inversely with respect to the company's performance?  Since I feel like I can't quite nail down my question, another form of it would be, why is stock market behavior driven by company performance? How to define orbital angular momentum in other than three dimensions?