| author | oheimb |
| Wed, 27 Nov 1996 13:13:21 +0100 | |
| changeset 2250 | 891eb76b8045 |
| parent 1824 | 44254696843a |
| child 2740 | 2c549ae2563b |
| permissions | -rw-r--r-- |
| 1496 | 1 |
(* Title: HOL/RelPow.thy |
2 |
ID: $Id$ |
|
3 |
Author: Tobias Nipkow |
|
4 |
Copyright 1996 TU Muenchen |
|
5 |
||
6 |
R^n = R O ... O R, the n-fold composition of R |
|
7 |
*) |
|
8 |
||
9 |
RelPow = Nat + |
|
10 |
||
11 |
consts |
|
12 |
"^" :: "('a * 'a) set => nat => ('a * 'a) set" (infixr 100)
|
|
13 |
defs |
|
| 1824 | 14 |
rel_pow_def "R^n == nat_rec id (%m S. R O S) n" |
| 1496 | 15 |
end |