| 1 |
n: . ( t@0.match(lnk(kind(a(destination(l);t)));t@0;t))(n)
 | 1 step |
| 2 |
mu( t@0.match(lnk(kind(a(destination(l);t)));t@0;t)) = time(e)
 | 2 steps |
| 3 |
(source(lnk(kind(a(destination(l);t)))) = 1of(e) (time(e)= 2of(e)))
& ||rcvs(lnk(kind(a(destination(l);t)));t)||
& -||snds(lnk(kind(a(destination(l);t)));time(e))||
& =
& n
 | 4 steps |