2 ms·
It seems like the monoid-thinking just obscures. Positive integers under addition are not a monoid (no identity) but you can still map-reduce their sum of squar
by millstone 6y ago
It seems like the monoid-thinking just obscures. Positive integers under addition are not a monoid (no identity) but you can still map-reduce their sum of squares. All that you really need is associativity, and associative operations are associative.