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doc-src/Intro/arith.thy
author wenzelm
Thu, 26 May 1994 16:40:45 +0200
changeset 398 41f279b477e2
parent 105 216d6ed87399
permissions -rw-r--r--
added mk_type, dest_type, mk_inclass, dest_inclass (for axclasses); restored functor sig constraint :LOGIC;
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Arith = FOL +
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classes arith < term
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consts  "0"     :: "'a::arith"                  ("0")
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        "1"     :: "'a::arith"                  ("1")
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        "+"     :: "['a::arith,'a] => 'a"       (infixl 60)
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end
isabelle