Termination Proof Script

Consider the TRS R consisting of the rewrite rules
1:    (x * y) + (x * z)  → x * (y + z)
2:    (x + y) + z  → x + (y + z)
3:    (x * y) + ((x * z) + u)  → (x * (y + z)) + u
There are 5 dependency pairs:
4:    (x * y) +# (x * z)  → y +# z
5:    (x + y) +# z  → x +# (y + z)
6:    (x + y) +# z  → y +# z
7:    (x * y) +# ((x * z) + u)  → (x * (y + z)) +# u
8:    (x * y) +# ((x * z) + u)  → y +# z
The approximated dependency graph contains one SCC: {4-6,8}.
Tyrolean Termination Tool  (0.02 seconds)   ---  May 4, 2006