doc-src/Intro/arith.thy
author wenzelm
Thu, 03 Feb 1994 13:56:44 +0100
changeset 256 b401c3d06024
parent 105 216d6ed87399
permissions -rw-r--r--
(this is a preliminary release) type abbreviations;

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