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.
doc-src/Tutorial/Recdef/fib
author paulson
Mon, 12 Nov 2001 10:56:38 +0100
changeset 12156 d2758965362e
parent 6100 40d66bc3e83f
permissions -rw-r--r--
new-style numerals without leading #, along with generic 0 and 1

consts fib :: nat => nat
recdef fib "measure(%n. n)"
  "fib 0 = 0"
  "fib 1 = 1"
  "fib (Suc(Suc x)) = fib x + fib (Suc x)"
isabelle