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The opposite generic function of x-diff

Hi, working on modifying my “Harmonic skins and position mapping” am I looking for the opposite generic function of x-diff. In other words, I would like the result to be what two lists (harmonic skins) have in common.

Best, Dagfinn

Hi Dagfinn

the opposite of x-diff is x-intersect.

Best, Peter

Hi Peter, thanks a lot!

Best, Dagfinn