Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/prelude/Ratio/Eq_Ratio.hs
module Ratio where --module Ratio(Eq(..)) where import DRatio instance (Integral a) => Eq (Ratio a) where (x:%y) == (x':%y') = x == x' && y == y' (x:%y) /= (x':%y') = x /= x' || y /= y'