<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="ko">
	<id>https://comphy.mju.ac.kr/juhapruopenwiki/index.php?action=history&amp;feed=atom&amp;title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84</id>
	<title>르벡 적분 - 편집 역사</title>
	<link rel="self" type="application/atom+xml" href="https://comphy.mju.ac.kr/juhapruopenwiki/index.php?action=history&amp;feed=atom&amp;title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84"/>
	<link rel="alternate" type="text/html" href="https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;action=history"/>
	<updated>2026-05-21T03:58:39Z</updated>
	<subtitle>이 문서의 편집 역사</subtitle>
	<generator>MediaWiki 1.37.2</generator>
	<entry>
		<id>https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;diff=567&amp;oldid=prev</id>
		<title>2024년 11월 28일 (목) 16:32에 Jwlee님의 편집</title>
		<link rel="alternate" type="text/html" href="https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;diff=567&amp;oldid=prev"/>
		<updated>2024-11-28T16:32:32Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&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;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2024년 11월 29일 (금) 01:32 판&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-l26&quot;&gt;26번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;26번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;    3의 증명 &amp;lt;math&amp;gt; D_y = { n | n \in Z+, f(n) = y } &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;    3의 증명 &amp;lt;math&amp;gt; D_y = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\&lt;/ins&gt;{ n | n \in Z+, f(n) = y &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\&lt;/ins&gt;} &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jwlee</name></author>
	</entry>
	<entry>
		<id>https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;diff=566&amp;oldid=prev</id>
		<title>2024년 11월 28일 (목) 16:32에 Jwlee님의 편집</title>
		<link rel="alternate" type="text/html" href="https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;diff=566&amp;oldid=prev"/>
		<updated>2024-11-28T16:32:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&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;ko&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← 이전 판&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;2024년 11월 29일 (금) 01:32 판&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-l24&quot;&gt;24번째 줄:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;24번째 줄:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;   3. If there exists onto mapping from countable X to infinite Y, then Y is countable.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; 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;   3. If there exists onto mapping from countable X to infinite Y, then Y is countable.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; 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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;   3의 증명 &amp;lt;math&gt; D_y = { n | n \in Z+, f(n) = y } &amp;lt;/math&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jwlee</name></author>
	</entry>
	<entry>
		<id>https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;diff=565&amp;oldid=prev</id>
		<title>Jwlee: 새 문서:     Theory of open quantum system이라는 책을 공부하다보니 확률론이 나오고 measure가 나오는데, 리만 measure와 르벡 measure가 다르다고하여 르벡 적분을 공부하려고 봤더니, 다시 집합론이 나온다.    무한 가산 집합의 크기? 가 알레프 넘버 0이라는 것을 이해하고,    실수 집합의 크기가 알레프 넘버 1이라는 것을 이해했다.    Z+와 1:1대응이 이루어지면, 대등하다고 한다.    아...</title>
		<link rel="alternate" type="text/html" href="https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=%EB%A5%B4%EB%B2%A1_%EC%A0%81%EB%B6%84&amp;diff=565&amp;oldid=prev"/>
		<updated>2024-11-28T16:28:54Z</updated>

		<summary type="html">&lt;p&gt;새 문서:     Theory of open quantum system이라는 책을 공부하다보니 확률론이 나오고 measure가 나오는데, 리만 measure와 르벡 measure가 다르다고하여 르벡 적분을 공부하려고 봤더니, 다시 집합론이 나온다.    무한 가산 집합의 크기? 가 알레프 넘버 0이라는 것을 이해하고,    실수 집합의 크기가 알레프 넘버 1이라는 것을 이해했다.    Z+와 1:1대응이 이루어지면, 대등하다고 한다.    아...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;새 문서&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&lt;br /&gt;
&lt;br /&gt;
  Theory of open quantum system이라는 책을 공부하다보니 확률론이 나오고 measure가 나오는데, 리만 measure와 르벡 measure가 다르다고하여 르벡 적분을 공부하려고 봤더니, 다시 집합론이 나온다.&lt;br /&gt;
&lt;br /&gt;
  무한 가산 집합의 크기? 가 알레프 넘버 0이라는 것을 이해하고, &lt;br /&gt;
  실수 집합의 크기가 알레프 넘버 1이라는 것을 이해했다.&lt;br /&gt;
&lt;br /&gt;
  Z+와 1:1대응이 이루어지면, 대등하다고 한다. &lt;br /&gt;
  아, 이해에 도움이 된 책은 최병선 교수의 한글 교재 르벡적분의 이해이다.&lt;br /&gt;
  일대일 대응과 일대일 사상은 다르다.&lt;br /&gt;
  일대일 대응은 전단사를 의미하고, 일대일 사상은 단사를 의미한다.&lt;br /&gt;
&lt;br /&gt;
  #X = #Y cardinal number&lt;br /&gt;
&lt;br /&gt;
  X에서 Y로 가는 전단사 함수가 존재하면 같은 농도를 갖는다, cardinal number가 같다라고 한다.&lt;br /&gt;
&lt;br /&gt;
  countable infinite element set&lt;br /&gt;
&lt;br /&gt;
  if #X = #Z+, then it is countable.&lt;br /&gt;
&lt;br /&gt;
  1. Every infinite subset of a countable set is countable.&lt;br /&gt;
&lt;br /&gt;
  2. If there exists one-to-one mapping from infinite X to countable Y, then X is countable.&lt;br /&gt;
&lt;br /&gt;
  3. If there exists onto mapping from countable X to infinite Y, then Y is countable.&lt;/div&gt;</summary>
		<author><name>Jwlee</name></author>
	</entry>
</feed>