ekmett / contravariant

Haskell 98 contravariant functors
http://hackage.haskell.org/package/contravariant
Other
73 stars 24 forks source link

No instance for (Semigroup (Predicate a)) #38

Closed phadej closed 6 years ago

phadej commented 6 years ago

The Monoid instance isn't in any released version, AFAICS