Tag management 2016 [duplicate]

Since it is a new year and the old Tag Management question has already over 70 answers, it is time for a new Tag Management thread.

Rules of the game are basically the same:

• A particularly bad tag (a rule of thumb: «if I can't imagine a person classifying a tag as either interesting or ignored, I'm getting rid of it»),
• A tag that should be a synonym of an existing one,
• A tag that used for two or more completely unrelated things,
• A need to create a new tag;
• Wait a couple of days before implementing a suggestion.
• After the problem described in an answer is resolved, please edit it to say so.

Also, note that one may use [tag:calculus] for , i.e. tags on the main site, and [meta-tag:discussion] for , i.e. for tags on the meta site.

• I like how this is a game, but you didn't explain the points system. – Simply Beautiful Art Sep 20 '16 at 23:59
• Maybe it's time to start a new thread, and the first answer there should encompass the still-open issues from this thread? – Asaf Karagila Jan 15 '17 at 8:38
• @AsafKaragila Should I copy all the still-open answers onto the new thread in multiple different answers? – suomynonA Jan 17 '17 at 1:36
• @suomynonA: One answer with links should suffice. Thanks! – Asaf Karagila Jan 17 '17 at 4:09
• @AsafKaragila Take a look here, looks good? – suomynonA Jan 17 '17 at 4:51

I created a new tag yesterday. I was not aware of this thread.

It is called and has this tag wiki:

"This tag is for questions about birth and death processes. These processes are a special case of the continuous-time Markov process where the state transitions are of only two types: "births", which increase the state variable by one and "deaths", which decrease the state by one and they are used to model the size of a population, queuing systems, the evolution of bacteria, the number of people with a disease within a population etc."

I created the tag because I thought it was reasonable to have such a tag when there are tags for poisson process and levy process. After all birth and death processes are widely used and the poisson process is also a markov process (and also a levy process).

Now when I have found this thread I just want to know if you think this tag is too specialized and/or too closely related to other tags?

If that is the case I remove the tag.

• Having given it some time, it seems like people are asking questions about it other than just you, so it seems fine to me. I could certainly imagine a scenario where someone may be interested in viewing an aggregation of questions about this topic. – Alexander Gruber Jun 18 '16 at 16:55
• You may, however, want to add a disambiguation that the tag should not be confused with birth-death diagrams in persistent topology. – Alexander Gruber Jun 18 '16 at 17:00

Create a new synonym for . (Quick search did not return any previous discussions on this)

• Why would that be useful? – user296602 May 9 '16 at 5:50
• @T.Bongers, it's a commonly used short form, isn't it? Like gcd for greatest-common-divisor – Jesse P Francis May 9 '16 at 6:00

I was considering creating (l'Hospital's-rule). Is searching for these questions sufficient?

• We already have limits-without-lhopital, FYI. – Najib Idrissi May 24 '16 at 17:10
• @NajibIdrissi yes, I know, but the proposed tag is the opposite. – ahorn May 24 '16 at 19:33

I suggest to add a tag (yes-or-no), used for question that are meant to receive a Yes/No answer, without need of further explanation. The standard question of this tag could be of the form "Is this fact/implication true?"

• I disagree. Just because the author of question doesn't need an explanation does not mean nobody else needs it. Good answers are substantiated; bad answers are not welcome. – user147263 Jan 13 '16 at 5:00
• This would be a meta-tag. Despite the fact that a few such tag exists and are allowed, it is advised not to create new ones, unless there is a very good reason to. See: meta.math.stackexchange.com/questions/2498/the-meta-tags – Martin Sleziak Jan 13 '16 at 8:00