Def covers_var(A;x)
==
fr:frame().
fr
< fr
A.frame |
fr.var =
x >
& (
a:Label. (a
fr.acts) 
(
ef:eff(). ef
< ef
A.eff |
ef.kind =
a &
ef.smt.lbl =
x > ))
is mentioned by
Def covers_pred(A;p) == x:Label. pred_mentions(p;x)  covers_var(A;x) | [covers_pred] |
In prior sections: mb automata 2
Try larger context: GenAutomata