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Answers and rating deltas for

Why has "map (filter fst)" the type "[[(Bool, a)]] -> [[(Bool, a)]]"?

Author Votes Δ
danielpwright 16 +4.05
hugomg 2 +0.94
phimuemue 1 -0.56
imladris 1 -1.50
Will Ness 1 -0.48
Xavier Pinho 1 -1.75
Last visited: Sep 14, 2014, 5:07:29 AM