Mapping for containers with two element types.

Signatures for (non-monadic) bi-mapping.

Simultaneous mapping and filtering.

Signatures for filter-mapping.

Non-monadic mapping.

Signatures for (non-monadic) mapping.

Monad transformer signatures.

Lifting a item to a singleton container.

Haskell-style state monads.

Haskell-style state transformers.

An expanded version of Core's associative list module.

Extensions for containers.

Extension signatures for containers.

Miscellaneous function combinators.

List extensions.

Generic monad extensions.

Option extensions.

Or-error monad extensions.

Monadic traversal.

Signatures for monadic traversal.

Generic type signatures.