doc-src/Intro/arith.thy
author wenzelm
Mon, 04 Jul 2011 22:11:32 +0200
changeset 43661 39fdbd814c7f
parent 105 216d6ed87399
permissions -rw-r--r--
quasi-static Isabelle_System -- reduced tendency towards "functorial style";

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