Safe Haskell | None |
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Documentation
Bottoms are ignored for this entire module: only fully-defined inhabitants are considered inhabitants.
Creating an instance of this class is a declaration that your type is
recursively enumerable (and that universe
is that enumeration). In
particular, you promise that any finite inhabitant has a finite index in
universe
, and that no inhabitant appears at two different finite indices.
class Universe a => Finite a whereSource
Creating an instance of this class is a declaration that your universe
eventually ends. Minimal definition: no methods defined. By default,
universeF = universe
, but for some types (like Either
) the universeF
method may have a more intuitive ordering.