/home/nowonder/forschung/aprove/TPDB05/TRS/TRCSR/Ex4_4_Luc96b_Z.trs

The program

(VAR X Y X1 X2)
(RULES 
f(g(X),Y) -> f(X,n__f(g(X),activate(Y)))
f(X1,X2) -> n__f(X1,X2)
activate(n__f(X1,X2)) -> f(X1,X2)
activate(X) -> X
)