doc-src/Intro/arith.thy
author wenzelm
Fri, 26 Nov 2010 22:29:41 +0100
changeset 40722 441260986b63
parent 105 216d6ed87399
permissions -rw-r--r--
make two copies (!) of Library.UnequalLengths coincide with ListPair.UnequalLengths;

Arith = FOL +
classes arith < term
consts  "0"     :: "'a::arith"                  ("0")
        "1"     :: "'a::arith"                  ("1")
        "+"     :: "['a::arith,'a] => 'a"       (infixl 60)
end