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	<id>https://www.glc.us.es/~jalonso/RA2010/index.php?action=history&amp;feed=atom&amp;title=Rel_6</id>
	<title>Rel 6 - Historial de revisiones</title>
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	<updated>2026-07-19T01:04:04Z</updated>
	<subtitle>Historial de revisiones para esta página en el wiki</subtitle>
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	<entry>
		<id>https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=327&amp;oldid=prev</id>
		<title>Jalonso en 07:50 16 jul 2018</title>
		<link rel="alternate" type="text/html" href="https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=327&amp;oldid=prev"/>
		<updated>2018-07-16T07:50:53Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;es&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Revisión anterior&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revisión del 07:50 16 jul 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Línea 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Línea 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;source lang=&amp;quot;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;isar&lt;/del&gt;&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;source lang=&amp;quot;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;isabelle&lt;/ins&gt;&amp;quot;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;header {* 6ª relación de ejercicios *}&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;header {* 6ª relación de ejercicios *}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jalonso</name></author>
		
	</entry>
	<entry>
		<id>https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=187&amp;oldid=prev</id>
		<title>Jalonso: Protegió «Rel 6» ([edit=sysop] (indefinido) [move=sysop] (indefinido))</title>
		<link rel="alternate" type="text/html" href="https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=187&amp;oldid=prev"/>
		<updated>2011-02-21T19:46:17Z</updated>

		<summary type="html">&lt;p&gt;Protegió «&lt;a href=&quot;/~jalonso/RA2010/index.php/Rel_6&quot; title=&quot;Rel 6&quot;&gt;Rel 6&lt;/a&gt;» ([edit=sysop] (indefinido) [move=sysop] (indefinido))&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;es&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Revisión anterior&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revisión del 19:46 21 feb 2011&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;es&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Sin diferencias)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Jalonso</name></author>
		
	</entry>
	<entry>
		<id>https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=186&amp;oldid=prev</id>
		<title>Jalonso en 19:46 21 feb 2011</title>
		<link rel="alternate" type="text/html" href="https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=186&amp;oldid=prev"/>
		<updated>2011-02-21T19:46:02Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;es&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Revisión anterior&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revisión del 19:46 21 feb 2011&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot; &gt;Línea 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Línea 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; --------------------------------------------------------------------- &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; --------------------------------------------------------------------- &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; Ejercicio 1. Definir la función &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; Ejercicio 1. Definir la función &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; &amp;#160;  cuentaP :: &amp;quot;(&amp;#039;a &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;\&amp;lt;Rightarrow&amp;gt; &lt;/del&gt;bool) &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;\&amp;lt;Rightarrow&amp;gt; &lt;/del&gt;&amp;#039;a list &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;\&amp;lt;Rightarrow&amp;gt; &lt;/del&gt;nat&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; &amp;#160;  cuentaP :: &amp;quot;(&amp;#039;a &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;⇒ &lt;/ins&gt;bool) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;⇒ &lt;/ins&gt;&amp;#039;a list &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;⇒ &lt;/ins&gt;nat&amp;quot;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; tal que (cuentaP Q xs) es el número de elementos de la lista xs que&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; tal que (cuentaP Q xs) es el número de elementos de la lista xs que&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; satisfacen el predicado Q. Por ejemplo,&amp;#160;  &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; satisfacen el predicado Q. Por ejemplo,&amp;#160;  &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; &amp;#160;  cuentaP (&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;\&amp;lt;lambda&amp;gt;x&lt;/del&gt;. 2&amp;lt;x) [1,3,4,0,5] = 3&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; &amp;#160;  cuentaP (&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;λx&lt;/ins&gt;. 2&amp;lt;x) [1,3,4,0,5] = 3&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; --------------------------------------------------------------------- &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&amp;#160; --------------------------------------------------------------------- &amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*}&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jalonso</name></author>
		
	</entry>
	<entry>
		<id>https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=185&amp;oldid=prev</id>
		<title>Jalonso: Página creada con &#039;&lt;source lang=&quot;isar&quot;&gt; header {* 6ª relación de ejercicios *}  theory Relacion_6 imports Main  begin  section {* Número de elementos válidos *}  text {*    -------------------...&#039;</title>
		<link rel="alternate" type="text/html" href="https://www.glc.us.es/~jalonso/RA2010/index.php?title=Rel_6&amp;diff=185&amp;oldid=prev"/>
		<updated>2011-02-21T19:44:56Z</updated>

		<summary type="html">&lt;p&gt;Página creada con &amp;#039;&amp;lt;source lang=&amp;quot;isar&amp;quot;&amp;gt; header {* 6ª relación de ejercicios *}  theory Relacion_6 imports Main  begin  section {* Número de elementos válidos *}  text {*    -------------------...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Página nueva&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;source lang=&amp;quot;isar&amp;quot;&amp;gt;&lt;br /&gt;
header {* 6ª relación de ejercicios *}&lt;br /&gt;
&lt;br /&gt;
theory Relacion_6&lt;br /&gt;
imports Main &lt;br /&gt;
begin&lt;br /&gt;
&lt;br /&gt;
section {* Número de elementos válidos *}&lt;br /&gt;
&lt;br /&gt;
text {* &lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
  Ejercicio 1. Definir la función &lt;br /&gt;
     cuentaP :: &amp;quot;(&amp;#039;a \&amp;lt;Rightarrow&amp;gt; bool) \&amp;lt;Rightarrow&amp;gt; &amp;#039;a list \&amp;lt;Rightarrow&amp;gt; nat&amp;quot;&lt;br /&gt;
  tal que (cuentaP Q xs) es el número de elementos de la lista xs que&lt;br /&gt;
  satisfacen el predicado Q. Por ejemplo,   &lt;br /&gt;
     cuentaP (\&amp;lt;lambda&amp;gt;x. 2&amp;lt;x) [1,3,4,0,5] = 3&lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
*}&lt;br /&gt;
&lt;br /&gt;
text {* &lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
  Ejercicio 2. Demostrar o refutar:&lt;br /&gt;
     cuentaP P (xs @ ys) = cuentaP P xs + cuentaP P ys*&lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
*}&lt;br /&gt;
&lt;br /&gt;
text {* &lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
  Ejercicio 3. Demostrar que el número de elementos de una lista que&lt;br /&gt;
  cumplen una determinada propiedad es el mismo que el de esa lista&lt;br /&gt;
  invertida. &lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
*}&lt;br /&gt;
&lt;br /&gt;
text {* &lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
  Ejercicio 4. Encontrar y demostrar una relación entre las funciones&lt;br /&gt;
  filter y  cuentaP. &lt;br /&gt;
  --------------------------------------------------------------------- &lt;br /&gt;
*}&lt;br /&gt;
&lt;br /&gt;
end&lt;br /&gt;
&amp;lt;/source&amp;gt;&lt;/div&gt;</summary>
		<author><name>Jalonso</name></author>
		
	</entry>
</feed>