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      <title>Introduction To Sets by SI</title>
      <link>https://padlet.com/fs_si/ar2a130c0kvclule</link>
      <description>Take turns discussing the questions with a partner. One of you needs to share their screen. You are not required to write down your answers but it is beneficial for you to do so and will make the following activities easier.</description>
      <language>en-us</language>
      <pubDate>2021-04-21 22:48:44 UTC</pubDate>
      <lastBuildDate>2024-07-14 16:37:21 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>What is a set?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444806914</link>
         <description><![CDATA[<div>a collection of things, like numbers or letters</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:50:17 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444806914</guid>
      </item>
      <item>
         <title>What are the objects within a set called?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807258</link>
         <description><![CDATA[<div>elements</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:50:29 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807258</guid>
      </item>
      <item>
         <title>Denote that Julie is an element of the set Si Leader and not an element of the set Student.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807520</link>
         <description><![CDATA[<div>don't forget the and</div>]]></description>
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         <pubDate>2021-04-21 22:50:35 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807520</guid>
      </item>
      <item>
         <title>Name some real world examples of a set.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807702</link>
         <description><![CDATA[<div>a bookshelf with the elements being the books</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:50:42 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807702</guid>
      </item>
      <item>
         <title>TF: {J,u,l,i,e} is equivalent to {l,j,u,i,l,e} ?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807826</link>
         <description><![CDATA[<div>T: repetition does not matter in sets</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:50:47 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444807826</guid>
      </item>
      <item>
         <title>TF: {J,u,l,i,e} is equivalent to {l,j,u,l,e} ?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444809102</link>
         <description><![CDATA[<div>F: the second set does not contain an "i"</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:50:54 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444809102</guid>
      </item>
      <item>
         <title>What is set builder notation?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811003</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-04-21 22:51:13 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811003</guid>
      </item>
      <item>
         <title>What is interval set notation?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811125</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-04-21 22:51:19 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811125</guid>
      </item>
      <item>
         <title>What is roster notation?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811231</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-04-21 22:51:23 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811231</guid>
      </item>
      <item>
         <title>Explain the difference between open and closed interval</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811735</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:51:38 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811735</guid>
      </item>
      <item>
         <title>What is the set U?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811937</link>
         <description><![CDATA[<div>The universe in which sets can have elements from</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:51:45 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444811937</guid>
      </item>
      <item>
         <title>Denote an empty set.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444812117</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-04-21 22:51:52 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444812117</guid>
      </item>
      <item>
         <title>How many sets are in an empty set?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444812425</link>
         <description><![CDATA[<div>none</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:03 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444812425</guid>
      </item>
      <item>
         <title>How many sets can be placed in a set?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444812540</link>
         <description><![CDATA[<div>an infinite amount of sets</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:08 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444812540</guid>
      </item>
      <item>
         <title>How many sets are in a set containing two empty sets?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813076</link>
         <description><![CDATA[<div>it contains two sets even though they're empty</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:26 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813076</guid>
      </item>
      <item>
         <title>How many elements are in a set containing two empty sets?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813214</link>
         <description><![CDATA[<div>two elements</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:31 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813214</guid>
      </item>
      <item>
         <title>Define equal sets.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813344</link>
         <description><![CDATA[<div>order nor repetition matter in sets</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:35 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813344</guid>
      </item>
      <item>
         <title>Define subsets.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813452</link>
         <description><![CDATA[<div>subsets contain elements from the original set. A = {1, 2, 3, 4, 5}<br>b = {2, 3}<br>c = {4, 5}</div>]]></description>
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         <pubDate>2021-04-21 22:52:40 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813452</guid>
      </item>
      <item>
         <title>Give an example of a subset.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813549</link>
         <description><![CDATA[]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:44 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813549</guid>
      </item>
      <item>
         <title>Denote that P is a subset of Q and not a subset of R.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813780</link>
         <description><![CDATA[]]></description>
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         <pubDate>2021-04-21 22:52:51 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813780</guid>
      </item>
      <item>
         <title>Define a proper subset.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813948</link>
         <description><![CDATA[<div>the subsets can't be equal</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:52:58 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444813948</guid>
      </item>
      <item>
         <title>Draw the venn diagram for a proper subset.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814366</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/732542766/c892cc1c71388862340c7c35e35df408/drawing.png" />
         <pubDate>2021-04-21 22:53:14 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814366</guid>
      </item>
      <item>
         <title>GIve an example of a proper subset.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814597</link>
         <description><![CDATA[<div>two pencil pouches, A contains two pencils and a marker. B contains two led pencils.</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:23 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814597</guid>
      </item>
      <item>
         <title>Describe and denote cardinality.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814750</link>
         <description><![CDATA[<div>asks for the amount of elements in the set</div>]]></description>
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         <pubDate>2021-04-21 22:53:29 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814750</guid>
      </item>
      <item>
         <title>| Ø | </title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814882</link>
         <description><![CDATA[<div>although it is an empty set, we only count the elements in that set. Since it is an empty set, there are no elements. So, the cardinality is 0.</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:33 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444814882</guid>
      </item>
      <item>
         <title>| {Ø},{ 1, 2, {Ø}}, {Ø} |</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815095</link>
         <description><![CDATA[<div>3</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:39 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815095</guid>
      </item>
      <item>
         <title>| { {}, {Ø}, {{}}, Ø} |</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815234</link>
         <description><![CDATA[<div>4</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:44 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815234</guid>
      </item>
      <item>
         <title>What is a power set?</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815501</link>
         <description><![CDATA[<div>it makes all possible combinations of the elements of a set. The cardinality of a power set would be 2 to the power of how many elements are in the set, or 2^n.<br>OR: contains all possible subsets of a set</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:50 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815501</guid>
      </item>
      <item>
         <title>Give an example of a power set.</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815793</link>
         <description><![CDATA[<div>A: {a, b}<br>P(A) = {{}, {a}, {b}, {a, b}}</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:54 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815793</guid>
      </item>
      <item>
         <title>| power set |</title>
         <author>fs_si</author>
         <link>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815975</link>
         <description><![CDATA[<div>2^n</div>]]></description>
         <enclosure url="" />
         <pubDate>2021-04-21 22:53:59 UTC</pubDate>
         <guid>https://padlet.com/fs_si/ar2a130c0kvclule/wish/1444815975</guid>
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