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(* Title: HOL/Modelcheck/Example.thy
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ID: $Id$
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Author: Olaf Mueller, Jan Philipps, Robert Sandner
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Copyright 1997 TU Muenchen
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*)
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Example = MCSyn +
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types
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state = "bool * bool * bool"
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consts
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INIT :: "state pred"
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N :: "[state,state] => bool"
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reach:: "state pred"
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defs
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INIT_def "INIT x == ~(fst x)&~(fst (snd x))&~(snd (snd x))"
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N_def "N == % (x1,x2,x3) (y1,y2,y3).
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(~x1 & ~x2 & ~x3 & y1 & ~y2 & ~y3) |
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( x1 & ~x2 & ~x3 & ~y1 & ~y2 & ~y3) |
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( x1 & ~x2 & ~x3 & y1 & y2 & y3) "
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reach_def "reach == mu (%Q x. INIT x | (? y. Q y & N y x))"
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end
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