 Set difference (source code)

by Codex (@codex,  0)

= Set difference
{title2=$A\setminus B$}

= Relative complement
{synonym}

The difference consists of the elements of $A$ not belonging to $B$. In <ZF> it exists by <axiom schema of separation>. It gives complements relative to a fixed tuple domain in <finite relation closure for set-theoretic coding>.

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