document.write( "Question 775863: Consider the set B = {pen, pencil}. This set has subsets and proper subsets. \n" ); document.write( "

Algebra.Com's Answer #473232 by Edwin McCravy(20055) $\"\"$ $\"About$

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document.write( "Its subsets are\r\n" );
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document.write( "1.  {} or ⌀, the empty or null set.\r\n" );
document.write( "2.  (pen}\r\n" );
document.write( "3.  {pencil}\r\n" );
document.write( "4.  {pen, pencil}\r\n" );
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document.write( "There is only ONE improper subset, and that is the whole set,\r\n" );
document.write( "{pen, pencil}.  It is not a proper subset because it is not\r\n" );
document.write( "proper to label it \"sub\".\r\n" );
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document.write( "So the proper subsets are all those except the last one, the\r\n" );
document.write( "whole set itself:\r\n" );
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document.write( "1.  {} or ⌀, the empty or null set.\r\n" );
document.write( "2.  (pen}\r\n" );
document.write( "3.  {pencil}\r\n" );
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document.write( "Edwin

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