Mercurial Mercurial > repos > isabelle / file revision
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
src/CCL/ex/Stream.thy
author paulson
Tue, 16 Jul 1996 15:49:46 +0200
changeset 1868 836950047d85
parent 1474 3f7d67927fe2
child 17456 bcf7544875b2
permissions -rw-r--r--
Put in minimal simpset to avoid excessive simplification, just as in revision 1.9 of HOL/indrule.ML

(*  Title:      CCL/ex/stream.thy
    ID:         $Id$
    Author:     Martin Coen, Cambridge University Computer Laboratory
    Copyright   1993  University of Cambridge

Programs defined over streams.
*)

Stream = List + 

consts

  iter1,iter2   ::  "[i=>i,i]=>i"

rules 

  iter1_def   "iter1(f,a) == letrec iter x be x$iter(f(x)) in iter(a)"
  iter2_def   "iter2(f,a) == letrec iter x be x$map(f,iter(x)) in iter(a)"

end
isabelle