/home/nowonder/forschung/aprove/TPDB05/TRS/Zantema/z23.trs

The program

(VAR x y )
(RULES
f(x,a(b(c(y)))) -> f(b(c(a(b(x)))),y)
f(a(x),y) -> f(x,a(y))
f(b(x),y) -> f(x,b(y))
f(c(x),y) -> f(x,c(y))
)
(COMMENT: TRS variant of the rpo-terminating SRS abc -> bacb )

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