|
0
|
1 |
(* Title: Substitutions/setplus.thy
|
|
|
2 |
Author: Martin Coen, Cambridge University Computer Laboratory
|
|
|
3 |
Copyright 1993 University of Cambridge
|
|
|
4 |
|
|
|
5 |
Minor additions to HOL's set theory
|
|
|
6 |
*)
|
|
|
7 |
|
|
|
8 |
Setplus = Set +
|
|
|
9 |
|
|
|
10 |
rules
|
|
|
11 |
|
|
|
12 |
ssubset_def "A < B == A <= B & ~ A=B"
|
|
|
13 |
|
|
|
14 |
end
|