Disambiguation Control

version 7 by Jon Ingold

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  • Section - is X intersect Y non-empty?

    To decide if (X - a list of objects) intersect (Y - a list of objects) is non-empty:
        let starting number be the number of entries in X;
        remove Y from X, if present;
        if the number of entries in X is not the starting number, decide yes;
        decide no.