Power set: Difference between revisions
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( 1 2 3 4 )
</pre>
=={{header|Forth}}==
<lang frink>
// Frink's set and array classes have built-in subsets[] methods that return all subsets.
a = new set[1,2,3,4]
a.subsets[] // Results are sets.
b = [1,2,3,4] // Array
b.subsets[] // Results are arrays.
</lang>
=={{header|GAP}}==
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