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doc-src/Intro/arith.thy
author huffman
Sat, 20 Aug 2011 13:07:00 -0700
changeset 44348 40101794c52f
parent 105 216d6ed87399
permissions -rw-r--r--
move lemma add_eq_0_iff to Groups.thy

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