doc-src/Intro/bool.thy
author wenzelm
Tue, 05 Mar 2002 20:55:20 +0100
changeset 13026 e45ebbb2e18e
parent 105 216d6ed87399
child 32960 69916a850301
permissions -rw-r--r--
iff: conditional rules declared as ``unsafe'';

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