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doc-src/Intro/bool.thy
author wenzelm
Sun, 28 Dec 1997 14:56:44 +0100
changeset 4487 9b4c1db5aca1
parent 105 216d6ed87399
child 32960 69916a850301
permissions -rw-r--r--
renamed Symtab.null to Symtab.empty;

Bool = FOL +
types 	bool 0
arities bool 	:: term
consts tt,ff	:: "bool"
end
isabelle