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	<id>http://wikipedia.prusaspira.org/index.php?action=history&amp;feed=atom&amp;title=Relaci%C5%8Dni</id>
	<title>Relaciōni - Wersiōnin istōrija</title>
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	<updated>2026-07-03T15:10:57Z</updated>
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		<title>WūranArtīkelinRedigītajs: Ast teīkuns(si) nāunan pāusan &quot;'''Relaciōni''' – ebwīrpa patūlisku stesse karteziskan rēizinsenin stēisan tūliskwan. Per intuiciōnin, ainunts sēisenis sirzdau šēisan tūliskwan el...&quot;</title>
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		<updated>2021-09-28T16:06:25Z</updated>

		<summary type="html">&lt;p&gt;Ast teīkuns(si) nāunan pāusan &amp;quot;&amp;#039;&amp;#039;&amp;#039;Relaciōni&amp;#039;&amp;#039;&amp;#039; – ebwīrpa patūlisku stesse karteziskan rēizinsenin stēisan tūliskwan. Per intuiciōnin, ainunts sēisenis sirzdau šēisan tūliskwan el...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Nāunan pāusan&lt;/b&gt;&lt;/p&gt;&lt;div&gt;'''Relaciōni''' – ebwīrpa patūlisku stesse karteziskan rēizinsenin stēisan tūliskwan. Per intuiciōnin, ainunts sēisenis sirzdau šēisan tūliskwan elamēntans.&lt;br /&gt;
&lt;br /&gt;
===Definiciōni===&lt;br /&gt;
&lt;br /&gt;
Seīsei dātan ebwīrpas tūliskwas &amp;lt;math&amp;gt;X_1, X_2, \dots, X_n&amp;lt;/math&amp;gt;. Per n-argumēntiskan (n-āriskan) relaciōnin bilāimai ebwīrpan tenesses karteziskas rēizinsenes patūlisku&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;\varrho \subseteq X_1 \times X_2 \times \dots \times X_n&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
===Ainasses tūliskwan relaciōnis===&lt;br /&gt;
&lt;br /&gt;
Šlāitewingiskai prēipalai stesses relaciōnin ast relaciōnis ēn ainasses tūliskwas n-tan karteziskasmu pōtencin, i.e. relaciōnis stesse wīdan &amp;lt;math&amp;gt;\varrho \subseteq X \times X \times \dots \times X = X^n&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Ik pazentlintun sen &amp;lt;math&amp;gt;\operatorname{Rel}_n(X)&amp;lt;/math&amp;gt; tūliskwan wisēisan n-argumēntiskan relaciōnin en tūliskwai X, staddan šēisan tūliskwan kardināliskas gīrbis ast dātan pra fōrmulin&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;|\operatorname{Rel}_n(X)| = 2^{|X|^n}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
En stawīdans relaciōnins wīrstmai dirīwus tāuwais ezteinū.&lt;br /&gt;
&lt;br /&gt;
===Zerōargumentiskas relaciōnis===&lt;br /&gt;
&lt;br /&gt;
Fōrmalai, turrimai interessantin prēipalin stēisan zerōargumentiskan relaciōnin en tūliskwai:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt;X^0 = \{\varnothing\}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Ast tēr dwāi stawīdas relaciōnis - &amp;lt;math&amp;gt;\varnothing&amp;lt;/math&amp;gt; be &amp;lt;math&amp;gt;\{\varnothing\}&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
===Ainaiargumēntiskas relaciōnis===&lt;br /&gt;
&lt;br /&gt;
Ainaiargumēntiskas relaciōnis (unāriskas relaciōnis) ast patūliskwas stesse tūliskwan X.&lt;br /&gt;
&lt;br /&gt;
====Perwaidīnsnas====&lt;br /&gt;
&lt;br /&gt;
En tūliskwai stēisan reālin gīrbin \mathbb R ainaiargumēntiskas relaciōnis ast:&lt;br /&gt;
&lt;br /&gt;
* tūlisku stēisan raciōnalin gīrbin &amp;lt;math&amp;gt;\mathbb Q&amp;lt;/math&amp;gt;,&lt;br /&gt;
* tūlisku stēisan naturālin gīrbin &amp;lt;math&amp;gt;\mathbb N&amp;lt;/math&amp;gt;,&lt;br /&gt;
* interwālin &amp;lt;math&amp;gt;(0,1)&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
===Dwāiargumēntiskas relaciōnis===&lt;br /&gt;
&lt;br /&gt;
Ukadeznimais tērpautan ast dwāiargumēntiskas relaciōnis (bināriskas relaciōnis), prastai bilītan per relaciōnis.&lt;br /&gt;
&lt;br /&gt;
Stawīdas relaciōnis ast tūliskwas stēisan enteikātan pūran stēisan elamēntan stesse wīdan &amp;lt;math&amp;gt;(x, y) \in X \times X&amp;lt;/math&amp;gt;. En deīktu &amp;lt;math&amp;gt;(x, y) \in \varrho&amp;lt;/math&amp;gt; deznimai peisāi di &amp;lt;math&amp;gt;x\; \varrho\; y&amp;lt;/math&amp;gt; be skaitāi di „x ast en relaciōnei &amp;lt;math&amp;gt;\varrho&amp;lt;/math&amp;gt; sēn y”.&lt;br /&gt;
&lt;br /&gt;
Tūlisku stēisan wissan elamēntan iz X, kawīdai ēit en pirmasmu pūres deīktan en relaciōnis pūrimans at bilītan per relaciōnis dōmenin, adder tūlisku stēisan elamēntan, kawīdai ēit na āntrasmu pūres deīktan - per šisses relaciōnis pawīdan.&lt;br /&gt;
&lt;br /&gt;
====Perwaidīnsnas====&lt;br /&gt;
&lt;br /&gt;
Tīpiskas perwaidīnsnas stēisan bināriskan relaciōnin ast:&lt;br /&gt;
&lt;br /&gt;
* paustā relaciōni, līgu pāustasmu tūliskwan,&lt;br /&gt;
* pilnā relaciōni, līgu X \times X be&lt;br /&gt;
* prōlunkisnan, i.e. patūlisku stēisan pūrin \{(x, x): x \in X\}.&lt;br /&gt;
&lt;br /&gt;
[[Category: Matemātiki]]&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--&lt;br /&gt;
[[de:Relation (Mathematik)]]&lt;br /&gt;
[[en:Finitary relation]]&lt;br /&gt;
[[pl:Relacja (matematyka)]]&lt;br /&gt;
[[ru:Отношение (математика)]]&lt;br /&gt;
--&amp;gt;&lt;/div&gt;</summary>
		<author><name>WūranArtīkelinRedigītajs</name></author>
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