document.write( "Question 1084197: How many subsets can be made from in U={a,b,c,d} \n" ); document.write( "
Algebra.Com's Answer #698261 by jim_thompson5910(35256)\"\" \"About 
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There are n = 4 elements in the set. So there are 2^n = 2^4 = 16 different subsets possible. \r
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\n" ); document.write( "\n" ); document.write( "Those 16 subsets are:
\n" ); document.write( "{a,b,c,d}
\n" ); document.write( "{a,b,c}, {a,b,d}, {a,c,d}, {b,c,d}
\n" ); document.write( "{a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}
\n" ); document.write( "{a}, {b}, {c}, {d}
\n" ); document.write( "{ }\r
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\n" ); document.write( "\n" ); document.write( "Note: { } denotes the empty set\r
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\n" ); document.write( "\n" ); document.write( "Each line shown above represents a grouping of sets. For example, all of the sets with 3 items in them, such as {a,b,d}, are all on the same line. This is a handy way to group things. If you wish to list it all out where each set gets its own line then you'd write it like this \r
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\n" ); document.write( "\n" ); document.write( "{a,b,c,d}
\n" ); document.write( "{a,b,c}
\n" ); document.write( "{a,b,d}
\n" ); document.write( "{a,c,d}
\n" ); document.write( "{b,c,d}
\n" ); document.write( "{a,b}
\n" ); document.write( "{a,c}
\n" ); document.write( "{a,d}
\n" ); document.write( "{b,c}
\n" ); document.write( "{b,d}
\n" ); document.write( "{c,d}
\n" ); document.write( "{a}
\n" ); document.write( "{b}
\n" ); document.write( "{c}
\n" ); document.write( "{d}
\n" ); document.write( "{}\r
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\n" ); document.write( "\n" ); document.write( "Further Reading:
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