doc-src/Intro/arith.thy
author ballarin
Mon, 24 Nov 2008 18:03:48 +0100
changeset 28879 db2816a37a34
parent 105 216d6ed87399
permissions -rw-r--r--
Read/cert_statement for theorem statements.

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