[Haskell-cafe] RE: Hashing over equivalence classes

Galchin, Vasili vigalchin at gmail.com
Sat Mar 14 23:52:26 EDT 2009

Hi Roman,

     So are you really talking about an equivalence relation on the
function's domain? The reason I ask is that it is well known that
"f(a)=f(b)" establishes an equivalence relation on f's co-domain!

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