Talk:Set Difference is Subset of Union of Differences

Is there a page covering that this is an equality if $T \subseteq R \subseteq S$? --Lord_Farin 15:40, 24 May 2012 (EDT)

I believe not. Feel free to add it, if it's useful to what you're doing (or just because it's interesting is a good enough reason of course). --prime mover 16:58, 24 May 2012 (EDT)