| 1 |
7. i:Id.
7. first(<i,t-1>)
7. 
7. loc(pred(<i,t-1>)) = i Id & time(pred(<i,t-1>))<t-1
7. & ( e':E.
7. & ( (loc(pred(<i,t-1>)) = loc(e') Id & time(pred(<i,t-1>))<time(e')
7. & ( (& loc(e') = i Id
7. & ( (& time(e')<t-1))
8. t = 0
9. i : Id
10. isnull(a(i;t-1))
11. first(<i,t-1>)
12. first(<i,t-1>)
13. loc(pred(<i,t-1>)) = i Id & time(pred(<i,t-1>))<t-1
14. e':E.
14. (loc(pred(<i,t-1>)) = loc(e') Id & time(pred(<i,t-1>))<time(e')
14. (& loc(e') = i Id
14. (& time(e')<t-1)
loc(pred(<i,t-1>)) = i Id & time(pred(<i,t-1>))<t
 | 4 steps |