The witness package

[Tags: bsd3, library]

A witness is a value that witnesses some sort of constraint on some list of type variables. This library provides support for simple witnesses, that constrain a type variable to a single type, and equality witnesses, that constrain two type variables to be the same type. It also provides classes for representatives, which are values that represent types. See the paper Witnesses and Open Witnesses (


Versions0.1, 0.2
Dependenciesbase (==4.*), mtl (>=1.1)
AuthorAshley Yakeley <>
MaintainerAshley Yakeley <>
Upload dateTue Sep 7 04:24:35 UTC 2010
Uploaded byAshleyYakeley
Downloads208 total (18 in last 30 days)




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