Power set: Difference between revisions

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m (→‎{{header|PL/I}}: added the use of a TRANS template.)
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{1, 2, 3, 4}
{1, 2, 3, 4}
</pre>
</pre>

=={{header|SETL}}==
<lang haskell>Pfour := pow({1, 2, 3, 4});
Pempty := pow({});
PPempty := pow(Pempty);

print(Pfour);
print(Pempty);
print(PPempty);</lang>

{{out}}
<pre>{{} {1} {2} {3} {4} {1 2} {1 3} {1 4} {2 3} {2 4} {3 4} {1 2 3} {1 2 4} {1 3 4} {2 3 4} {1 2 3 4}}
{{}}
{{} {{}}}</pre>


=={{header|Sidef}}==
=={{header|Sidef}}==