Term Rewriting System R:
[X, Y]
f(X, g(X), Y) -> f(Y, Y, Y)
g(b) -> c
b -> c

Innermost Termination of R to be shown.



   R
Removing Redundant Rules for Innermost Termination



Removing the following rules from R which left hand sides contain non normal subterms

g(b) -> c


   R
RRRI
       →TRS2
Dependency Pair Analysis



R contains the following Dependency Pairs:

F(X, g(X), Y) -> F(Y, Y, Y)

Furthermore, R contains one SCC.


   R
RRRI
       →TRS2
DPs
           →DP Problem 1
Non-Overlappingness Check


Dependency Pair:

F(X, g(X), Y) -> F(Y, Y, Y)


Rules:


f(X, g(X), Y) -> f(Y, Y, Y)
b -> c





R does not overlap into P. Moreover, R is locally confluent (all critical pairs are trivially joinable).Hence we can switch to innermost.
The transformation is resulting in one subcycle:


   R
RRRI
       →TRS2
DPs
           →DP Problem 1
NOC
             ...
               →DP Problem 2
Dependency Graph


Dependency Pair:

F(X, g(X), Y) -> F(Y, Y, Y)


Rules:


f(X, g(X), Y) -> f(Y, Y, Y)
b -> c


Strategy:

innermost




Using the Dependency Graph resulted in no new DP problems.

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