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 (


Versions 0.1, 0.2, 0.3,
Dependencies base (==4.*), mtl (>=1.1) [details]
License BSD3
Author Ashley Yakeley <>
Maintainer Ashley Yakeley <>
Stability Unknown
Category Data
Uploaded Tue Sep 7 04:24:35 UTC 2010 by AshleyYakeley
Distributions NixOS:
Downloads 590 total (16 in the last 30 days)
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Status Docs uploaded by user
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