Termination Proof Script

Consider the TRS R consisting of the rewrite rules
1:    app(f,a)  → app(f,b)
2:    app(g,b)  → app(g,a)
There are 2 dependency pairs:
3:    APP(f,a)  → APP(f,b)
4:    APP(g,b)  → APP(g,a)
The approximated dependency graph contains no SCCs and hence the TRS is trivially terminating.
Tyrolean Termination Tool  (0.01 seconds)   ---  May 3, 2006