/home/nowonder/forschung/aprove/TPDB05/TRS/nontermin/CSR/Ex8_BLR02.trs

The program

(VAR N X Y XS)

(RULES 
fib(N) -> sel(N,fib1(s(0),s(0)))
fib1(X,Y) -> cons(X,fib1(Y,add(X,Y)))
add(0,X) -> X
add(s(X),Y) -> s(add(X,Y))
sel(0,cons(X,XS)) -> X
sel(s(N),cons(X,XS)) -> sel(N,XS)
)

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