f the two sets are identical<br>
</span>

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<h2>Integer Arithmetic Functions</h2>
Integers are represented by lists with the equivalent number of
x's.&nbsp; For example the number 4 is x x x x.&nbsp; The maximum
integer that the library can handle as <span style="font-style: italic;">input</span> (i.e. as the argument to a
call to <span style="font-family: monospace;">int_encode</span>) is
65536. There is no limit on integer s