/home/nowonder/forschung/aprove/TPDB05/TRS/TRCSR/Ex6_Luc98_Z.trs

The program

(VAR X Y Z X1 X2)
(RULES 
first(0,X) -> nil
first(s(X),cons(Y,Z)) -> cons(Y,n__first(X,activate(Z)))
from(X) -> cons(X,n__from(s(X)))
first(X1,X2) -> n__first(X1,X2)
from(X) -> n__from(X)
activate(n__first(X1,X2)) -> first(X1,X2)
activate(n__from(X)) -> from(X)
activate(X) -> X
)

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