{-# OPTIONS -cpp #-}

{- |

Module : $Header$

Description : Instance of class Logic for SPASS.

Copyright : (c) Rene Wagner, Uni Bremen 2005

License : similar to LGPL, see HetCATS/LICENSE.txt or LIZENZ.txt

Maintainer : rwagner@tzi.de

Stability : provisional

Portability : non-portable (imports Logic)

Instance of class Logic for SPASS.

-}

module SPASS.Logic_SPASS where

import Common.DefaultMorphism

import SPASS.ATC_SPASS

import Logic.Logic

import SPASS.Sign

import SPASS.Print

#ifdef UNI_PACKAGE

import SPASS.Prove

#endif

{- |

A dummy datatype for the LogicGraph and for identifying the right

instances

-}

data SPASS = SPASS deriving (Show)

instance Language SPASS where

description _ =

"SPASS - an automated theorem prover\n" ++

"This logic corresponds to the logic of SPASS.\n" ++

"See http://spass.mpi-sb.mpg.de/"

instance Category SPASS Sign SPASSMorphism where

dom SPASS = domOfDefaultMorphism

cod SPASS = codOfDefaultMorphism

ide SPASS = ideOfDefaultMorphism

comp SPASS = compOfDefaultMorphism

legal_obj SPASS = const True

legal_mor SPASS = legalDefaultMorphism (legal_obj SPASS)

-- abstract syntax, parsing (and printing)

instance Logic.Logic.Syntax SPASS () () ()

-- default implementation is fine!

instance Sentences SPASS Sentence () Sign SPASSMorphism () where

map_sen SPASS _ s = return s

print_named SPASS ga formula =

printFormula ga formula

-- the prover uses HTk and IO functions from uni

#ifdef UNI_PACKAGE

provers SPASS = [spassProver]

cons_checkers SPASS = []

#endif

-- other default implementations are fine

instance StaticAnalysis SPASS () Sentence ()

() ()

Sign

SPASSMorphism () () where

sign_to_basic_spec SPASS _sigma _sens = ()

empty_signature SPASS = emptySign

inclusion SPASS = defaultInclusion (is_subsig SPASS)

is_subsig SPASS = const $ const True -- TODO!!

instance Logic SPASS () () Sentence () ()

Sign

SPASSMorphism () () () where

stability _ = Testing

-- again default implementations are fine