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  2. Unordered pair - Wikipedia

    en.wikipedia.org/wiki/Unordered_pair

    An unordered pair is a finite set; its cardinality (number of elements) is 2 or (if the two elements are not distinct) 1. In axiomatic set theory, the existence of unordered pairs is required by an axiom, the axiom of pairing. More generally, an unordered n-tuple is a set of the form {a 1, a 2,... a n}. [5] [6] [7]

  3. PHP serialization format - Wikipedia

    en.wikipedia.org/wiki/PHP_serialization_format

    The PHP serialization format is the serialization format used by the PHP programming language. The format can serialize PHP's primitive and compound types, and also properly serializes references. [1] The format was first introduced in PHP 4. [2] In addition to PHP, the format is also used by some third-party applications that are often ...

  4. Help:Wikitext - Wikipedia

    en.wikipedia.org/wiki/Help:Wikitext

    [[Wikipedia: Manual of Style # Italics]] is a link to a section within another page. Wikipedia:Manual of Style#Italics is a link to a section within another page. [[# Links and URLs]] is a link to another section on the current page. [[# Links and URLs | Links and URLs]] is a link to the same section without showing the # symbol.

  5. Help : Wikipedia: The Missing Manual/Formatting and ...

    en.wikipedia.org/wiki/Help:Wikipedia:_The...

    Lists and tables are two different ways to format multiple, similar items on a page. Lists and HTML tables go back to Wikipedia's early days. The current wikicode tables (see the section about tables), which you can edit more easily and even sort, came later. You'll find many more lists than tables on Wikipedia.

  6. Wikipedia:How the Current events page works - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:How_the_Current...

    The daily current events "blank" boxes are now generated daily by an efficient bot, so the instructions below this only apply if the bot has been disabled.. If you reached this page via the current date box's "edit" link, check whether the portal box has already been initiated, and already contains the following (parsed) wiki code (use copy/paste from the code below, if necessary, to correct ...

  7. Help:Page information - Wikipedia

    en.wikipedia.org/wiki/Help:Page_information

    Which namespace the page is in (omitted for articles) Wikipedia Page ID: See mw:Page id: 16283969 Page content language: See mw:Page content language: en - English Page content model: Type of content (eg. wiki content, or program code like CSS or JavaScript). See also mw:Manual:ContentHandler: wikitext Indexing by robots: See WP:NOINDEX. Allowed

  8. Help:List - Wikipedia

    en.wikipedia.org/wiki/Help:List

    Separating unordered list items with blank lines may look approximately normal on-screen, but it creates many separate one-item lists, which is a problem for people using screen readers and is discouraged by the guideline on accessibility for people with disabilities, and is also problematic for machine analysis of the article, and for reuse of ...

  9. Wikipedia:User page design guide/Style - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:User_page_design...

    Then, copy the following code into the subpage and change the parts in all caps (e.g.: "COLOR OF TEXT" and "HEADER TEXT YOU WANT") Transclude the header onto your user page (type the full name of the subpage inside double curly brackets) {{like this}} Example code: