src/HOL/UNITY/Follows.thy
author wenzelm
Wed Oct 18 23:42:18 2000 +0200 (2000-10-18)
changeset 10265 4e004b548049
parent 9019 9c1118619d6c
child 13796 19f50fa807ae
permissions -rw-r--r--
use Multiset from HOL/Library;
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(*  Title:      HOL/UNITY/Follows
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    ID:         $Id$
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    Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
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    Copyright   1998  University of Cambridge
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The "Follows" relation of Charpentier and Sivilotte
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*)
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Follows = SubstAx + ListOrder + Multiset +
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constdefs
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  Follows :: "['a => 'b::{order}, 'a => 'b::{order}] => 'a program set"
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                 (infixl "Fols" 65)
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   "f Fols g == Increasing g Int Increasing f Int
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                Always {s. f s <= g s} Int
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                (INT k. {s. k <= g s} LeadsTo {s. k <= f s})"
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end