Copyright | (c) Dominik Luecke, Uni Bremen 2007 |
---|---|
License | GPLv2 or higher, see LICENSE.txt |
Maintainer | luecke@informatik.uni-bremen.de |
Stability | experimental |
Portability | portable Definition of signatures for propositional logic Ref. Till Mossakowski, Joseph Goguen, Razvan Diaconescu, Andrzej Tarlecki. What is a Logic?. In Jean-Yves Beziau (Ed.), Logica Universalis, pp. 113-@133. Birkhaeuser. 2005. |
Safe Haskell | Safe-Inferred |
Documentation
newtype Sign
Datatype for propositional Signatures Signatures are just sets
id2SimpleId :: Id -> Token
isLegalSignature :: Sign -> Bool
determines whether a signature is vaild all sets are ok, so glued to true
isSubSigOf :: Sign -> Sign -> Bool
Determines if sig1 is subsignature of sig2