doc-src/Intro/arith.thy
author wenzelm
Mon, 06 Feb 2006 20:59:02 +0100
changeset 18935 f22be3d61ed5
parent 105 216d6ed87399
permissions -rw-r--r--
added abbreviations; added certify (mostly from sign.ML);

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