Term Rewriting System R:
[x, y]
rev(a) -> a
rev(b) -> b
rev(++(x, y)) -> ++(rev(y), rev(x))
rev(++(x, x)) -> rev(x)

Innermost Termination of R to be shown.



   R
Removing Redundant Rules



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

rev(a) -> a

where the Polynomial interpretation:
  POL(rev(x1))=  2·x1  
  POL(b)=  0  
  POL(++(x1, x2))=  x1 + x2  
  POL(a)=  1  
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:

rev(++(x, y)) -> ++(rev(y), rev(x))
rev(++(x, x)) -> rev(x)

where the Polynomial interpretation:
  POL(rev(x1))=  2·x1  
  POL(b)=  0  
  POL(++(x1, x2))=  1 + 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:

rev(b) -> b

where the Polynomial interpretation:
  POL(rev(x1))=  1 + x1  
  POL(b)=  0  
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