package alg_structs

Law notes the laws that should be obeyed by any instantiation of Monoid in the form of predicates that should hold true for any arguments of the appropriate type.

You can use the alg_structs_qcheck package to generate property based tests of these laws for new modules satisfying this interface.

• parameter M

  An implementation of Monoid

Parameters

Signature

S.(x * (y * z)) = S.((x * y) * z)

S.(x * unit) = unit

S.(unit * x) = unit

(M.mconcat xs) = List.fold_right M.op xs M.unit