Mercurial Mercurial > repos > isabelle / annotate
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/Misc/Fib.thy
author obua
Sun, 09 May 2004 23:04:36 +0200
changeset 14722 8e739a6eaf11
parent 5377 efb799c5ed3c
permissions -rw-r--r--
replaced apply-style proof for instance Multiset :: plus_ac0 by recommended Isar proof style
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5377
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     1
 
Fib = WF_Rel +
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     2
 
consts fib  :: nat => nat
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     3
 
recdef fib "measure(%n. n)"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     4
 
    "fib 0 = 0"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     5
 
    "fib 1 = 1"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     6
 
    "fib (Suc(Suc x)) = fib x + fib (Suc x)"
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     7
 
end
isabelle