Term Rewriting System R:
[y, u, v, w, z]
concat(leaf, y) -> y
concat(cons(u, v), y) -> cons(u, concat(v, y))
lessleaves(x, leaf) -> false
lessleaves(leaf, cons(w, z)) -> true
lessleaves(cons(u, v), cons(w, z)) -> lessleaves(concat(u, v), concat(w, z))

Innermost Termination of R to be shown.



   R
Removing Redundant Rules



Removing the following rules from R which fullfill a polynomial ordering:

concat(leaf, y) -> y
lessleaves(x, leaf) -> false
lessleaves(leaf, cons(w, z)) -> true

where the Polynomial interpretation:
  POL(cons(x1, x2))=  x1 + x2  
  POL(x)=  0  
  POL(false)=  0  
  POL(true)=  0  
  POL(less_leaves(x1, x2))=  x1 + x2  
  POL(leaf)=  1  
  POL(concat(x1, x2))=  x1 + x2  
was used.

Not all Rules of R can be deleted, so we still have to regard a part of R.


   R
RRRPolo
       →TRS2
Removing Redundant Rules



Removing the following rules from R which fullfill a polynomial ordering:

lessleaves(cons(u, v), cons(w, z)) -> lessleaves(concat(u, v), concat(w, z))

where the Polynomial interpretation:
  POL(cons(x1, x2))=  1 + x1 + x2  
  POL(less_leaves(x1, x2))=  x1 + x2  
  POL(concat(x1, x2))=  x1 + x2  
was used.

Not all Rules of R can be deleted, so we still have to regard a part of R.


   R
RRRPolo
       →TRS2
RRRPolo
           →TRS3
Removing Redundant Rules



Removing the following rules from R which fullfill a polynomial ordering:

concat(cons(u, v), y) -> cons(u, concat(v, y))

where the Polynomial interpretation:
  POL(cons(x1, x2))=  1 + x1 + x2  
  POL(concat(x1, x2))=  2·x1 + x2  
was used.

All Rules of R can be deleted.


   R
RRRPolo
       →TRS2
RRRPolo
           →TRS3
RRRPolo
             ...
               →TRS4
Dependency Pair Analysis



R contains no Dependency Pairs and therefore no SCCs.

Innermost Termination of R successfully shown.
Duration:
0:00 minutes