Data.Comp.Multi.Ordering

This module defines ordering of signatures, which lifts to ordering of terms and contexts.

Documentation

class KEq f => KOrd f where

Methods

kcompare :: f i -> f j -> Ordering

Instances

Ord a => KOrd (K a)

KOrd (Numbered a)

(HFunctor f, OrdHF f, KOrd a) => KOrd (Cxt h f a)

class EqHF f => OrdHF f where

Signature ordering. An instance OrdHF f gives rise to an instance Ord (Term f).

Methods

compareHF :: KOrd a => f a i -> f a j -> Ordering

Instances

(HFunctor f, OrdHF f) => OrdHF (Cxt h f)

From an OrdHF difunctor an Ord instance of the corresponding term type can be derived.

(OrdHF f, OrdHF g) => OrdHF (:+: f g)

OrdHF is propagated through sums.