doc-src/Tutorial/Misc/Last.thy
author wenzelm
Mon, 23 Oct 2000 22:10:36 +0200
changeset 10309 a7f961fb62c6
parent 5377 efb799c5ed3c
permissions -rw-r--r--
intro_classes by default;

Last = List +
consts last :: 'a list => 'a
recdef last "measure (%xs. length xs)"
    "last [x]      = x"
    "last (x#y#zs) = last (y#zs)"
end