Unsupported titles/`vert`

A vertical line.

| (English symbol name vertical bar or vertical line or pipe)

1. (logic) The Sheffer stroke: joins two statements of which not both are true (nand).

   Synonym: ⊼

2. (mathematics) Such that; having the property that.

   Synonym: :

   ${\displaystyle \lbrace x\in \mathbb {R} |x>0\rbrace }$ 

   • 2006, K. Chung et al., Bifurcation analysis of a two-degree-of-freedom aeroelastic system with freeplay structural nonlinearity by a perturbation-incremental method, Journal of Sound and Vibration.

     According to the three linear branches of the bilinear function for a freeplay model, the phase space ${\displaystyle X\in R^{8}}$  can be divided into three regions, ${\displaystyle R_{i}(i=1,2,3)}$ , where each corresponds to a linear system:

     ${\displaystyle X'=AX+F_{1}}$  in ${\displaystyle R_{1}=\{X\in R^{8}|x_{1}<\alpha _{f}\}}$ 

3. (mathematics, of a function) Restricted to.

   ${\displaystyle f|_{A}:A\rightarrow B}$  for any ${\displaystyle A\subseteq \operatorname {dom} (f)}$ .

4. (mathematics, of an expression) Evaluated at.

   ${\displaystyle x+2|_{x=1}=3}$ 

5. (statistics) Conditional probability.

   ${\displaystyle P(X|Y)}$  ― the conditional probability of X given Y

6. A tally mark representing one.

   Coordinate term: 𝍸 (“five”)

   The number 6 can be represented as ||||||.

   • 2005 May 16, Tony, “Re: what do you call the prisoners' counting numerals?”, in alt.usage.english‎^[1] (Usenet; in English), message-ID <r6ih81lc4qe8upv3qlt86vpjtt5k4lqifi@4ax.com>:

     If I was counting screws, for example, and using the tally mark system, I'd lay out the list:

     Phillips head, 1/2"   |||

     Phillips head, 3/4"   ||

     Phillips head, 1"      ||||

7. (linguistics) Separates elements of a word.
   • 2012, István Tótfalusi, Sertések a Bakonyban: kalandos nyelvtörténet [Pigs in the Bakony: An Adventurous History of Language] (quotation in Hungarian; overall work in Hungarian), Budapest: Libri Publishing Hungary, →ISBN, →LCCN, →OCLC, →OL, (HU-BpBKP)bkp121012591, page 75:

     Mármost a ragok és képzők többnyire kétalakúak, hogy a mély hangrendű szóhoz mélyet és magashoz magasat lehessen tenni. Ezért azt mondjuk, hogy kép | es | ség | ei | vel, illetve hogy ad | ós | ság | ai | val. Így nyilván mindenki ráismer erre a harmóniára.

     Now, the suffixes and derivational affixes generally have two forms, so that a low-vowel word can take a low-vowel suffix and a high-vowel word can take a high-vowel suffix. This is why we say "kép | es | ség | ei | vel" [with his/her abilities] and "ad | ós | ság | ai | val" [with his/her debts]. Thus, it is clear that everyone recognizes this harmony.

For IPA use, the symbol may be made heavy to distinguish it from the dental click ⟨ǀ⟩.

1. (IPA, boldface) Marks a minor prosodic break, anything from a metrical foot to the end of a continuing prosodic unit, depending on context.

   Coordinate term: ‖

2. (computing) Used as a pipe in Unix.
3. (programming) Used in some programming languages as the "bitwise or" operator.

   Coordinate terms: &, ^

4. (regular expressions) Metacharacter that matches either the expression before or the expression after.

   abc|def matches "abc" or "def".

5. (music) A pointing mark in Anglican chant, which marks a place in the text where a barline occurs in the chant.

   Synonym: '

   Coordinate terms: :, *, ⋅, —, ‖, †

6. (Internet, rare) Used in email, Usenet, and some forums to indent the quoted message being replied to.

   Synonym: >

   • 2003 January 21, Jugoslav Dujic, “Re: Using common DLL routines...”, in comp.os.ms-windows.programmer.win32‎^[2] (Usenet; in English):

     | Thanks, Barry. I was able to achieve run time linking by using your example as
     | a model, although, 1) I don't entirely understand the use of typedef, etc.,
     | and,
     1) From the viewpoint of just occasional user of C(++): I think that syntax of pointers-to-functions is just plain ugly, tough to remember and tough to comprehend.

7. (Internet slang) In a title, separates related but distinct pieces of information.

   "The Wedding – Part 1" | Guilds of Arcadia | S04E20 | Full episode

   Synonym: //

The IPA symbol is intended to be typeset in bold typeface, and is presented that way in the official IPA symbol charts.

• ∣ (divisor)
• | | (enclosing vertical lines)
• ‖ (caesura)
• ‖ ‖ (enclosing caesuras)
•   Sheffer stroke on Wikipedia.Wikipedia