author | clasohm |
Tue, 24 Oct 1995 14:59:17 +0100 | |
changeset 251 | f04b33ce250f |
parent 249 | 492493334e0f |
permissions | -rw-r--r-- |
(* Title: HOL/IOA/meta_theory/Solve.thy ID: $Id$ Author: Tobias Nipkow & Konrad Slind Copyright 1994 TU Muenchen Weak possibilities mapping (abstraction) *) Solve = IOA + consts is_weak_pmap :: "['c => 'a, ('action,'c)ioa,('action,'a)ioa] => bool" defs is_weak_pmap_def "is_weak_pmap(f,C,A) == (!s:starts_of(C). f(s):starts_of(A)) & (!s t a. reachable(C,s) & <s,a,t>:trans_of(C) --> if(a:externals(asig_of(C)), <f(s),a,f(t)>:trans_of(A), f(s)=f(t)))" end