doc-src/Tutorial/Misc/Sep2.thy
author paulson
Wed, 18 Feb 2004 16:01:37 +0100
changeset 14393 71dff3bade66
parent 5377 efb799c5ed3c
permissions -rw-r--r--
new Union syntax

Sep2 = List +
consts sep :: "'a * 'a list => 'a list"
recdef sep "measure (%(a,xs). length xs)"
    "sep(a, x#y#zs) = x # a # sep(a,y#zs)"
    "sep(a, xs)     = xs"
end