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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]
date: date of publication, in same format as dates in the body of the article. pages or page: the page number or numbers of the relevant information (e.g. pages=31-32 or page=157). Note that "pages" overrides "page" if they are both present. access-date: Date when item was accessed, in same format as dates in the body of the article.
''Title of list:'' example 1, example 2, example 3 Title of list: example 1, example 2, example 3 This style requires less space on the page, and is preferred if there are only a few entries in the list, it can be read easily, and a direct edit point is not required. The list items should start with a lowercase letter unless they are proper nouns.
Wikipedia:User page design guide/Style; Wikipedia:Extended image syntax: advanced visual file markup. Help:A quick guide to templates: an introduction to templates. Help:Substitution: substitution is an alternative way of including templates than transclusion. Help:Score: how to render musical scores.
For example, to prove the case n = 3, use the axiom of pairing three times, to produce the pair {A 1,A 2}, the singleton {A 3}, and then the pair {{A 1,A 2},{A 3}}. The axiom of union then produces the desired result, {A 1,A 2,A 3}. We can extend this schema to include n=0 if we interpret that case as the axiom of empty set.
The "example" entry allows you to display an example of an entry that a person might make for this variable, written exactly as a person might type it, character-for-character; if the type of entry has already been set with the "type" parameter (see below), then the example should reflect this (i.e., if the type has been set to "wiki-page-name ...
3 Examples. Toggle the table of contents. ... The format is the same as for the |style= parameter. item_style – a custom css style for all of the list items ...
If an article overall has so many images that they lengthen the page beyond the length of the text itself, you can use a gallery; or you can create a page or category combining all of them at Wikimedia Commons and use a relevant template ({}, {{Commons category}}, {{Commons-inline}} or {{Commons category-inline}}) to link to it instead, so that ...