-- needs ghc -fglasgow-exts

{- HetCATS/Grothendieck.hs

$Id$

Till Mossakowski

The Grothendieck logic is defined to be the

heterogeneous logic over the logic graph.

This will be the logic over which the data

structures and algorithms for specification in-the-large

are built.

References:

R. Diaconescu:

Grothendieck institutions

J. applied categorical structures, to appear

T. Mossakowski:

Heterogeneous development graphs and heterogeneous borrowing

Fossacs 2002, LNCS 2303

T. Mossakowski: Simplified heterogeneous specification

Submitted

Todo:

-}

module Grothendieck where

import Logic

import LogicGraph

import Dynamic

data Grothendieck = Grothendieck

data G_basic_spec = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_basic_spec id basic_spec

data G_sentence = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_sentence id sentence

data G_l_sentence_list = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_l_sentence id [(String,sentence)]

data G_sign = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_sign id sign

data G_sign_list = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_sign_list id [sign]

data G_local_env = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_local_env id local_env

data G_morphism = forall id1 sublogics1

basic_spec1 sentence1 symb_items1 symb_map_items1

local_env1 sign1 morphism1 symbol1 raw_symbol1

id2 sublogics2

basic_spec2 sentence2 symb_items2 symb_map_items2

local_env2 sign2 morphism2 symbol2 raw_symbol2 .

(Logic id1 sublogics1

basic_spec1 sentence1 symb_items1 symb_map_items1

local_env1 sign1 morphism1 symbol1 raw_symbol1,

Logic id2 sublogics2

basic_spec2 sentence2 symb_items2 symb_map_items2

local_env2 sign2 morphism2 symbol2 raw_symbol2) =>

G_morphism

id1

id2

(LogicRepr id1 sublogics1 basic_spec1 sentence1 symb_items1 symb_map_items1

local_env1 sign1 morphism1 symbol1 raw_symbol1

id2 sublogics2 basic_spec2 sentence2 symb_items2 symb_map_items2

local_env2 sign2 morphism2 symbol2 raw_symbol2)

morphism2

data G_symbol = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_symbol id symbol

data G_symb_items = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_symb_items id symb_items

data G_symb_items_list = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_symb_items_list id [symb_items]

data G_symb_map_items = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_symb_map_items id symb_map_items

data G_symb_map_items_list = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_symb_map_items_list id [symb_map_items]

data G_diagram = forall id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol .

Logic id sublogics

basic_spec sentence symb_items symb_map_items

local_env sign morphism symbol raw_symbol =>

G_diagram id (Diagram sign morphism)

homogenize_symb_items :: [G_symb_items] -> Maybe G_symb_items_list

homogenize_symb_items [] = Nothing

homogenize_symb_items (G_symb_items i (s::symb_map_items) : rest) =

maybe Nothing

(\l -> Just (G_symb_items_list i l))

( sequence (Just s :

map (\(G_symb_items _ si) -> coerce si::Maybe symb_map_items) rest) )