ListSetOps

unionLists

minusList

insertList

type Assoc a b

assoc

assocMaybe

assocUsing

assocDefault

assocDefaultUsing

emptyAssoc

unitAssoc

mapAssoc

plusAssoc_C

extendAssoc_C

mkLookupFun

findInList

assocElts

hasNoDups

runs

removeDups

findDupsEq

equivClasses

equivClassesByUniq

removeRedundant