; @origtpdbfilename ./TRS/Zantema/z23.trs
; @xtcfilename "./TRS_Standard/Zantema_05/z23.xml"
(format TRS)
(fun f 2)
(fun a 1)
(fun b 1)
(fun c 1)
(rule (f x (a (b (c y)))) (f (b (c (a (b x)))) y))
(rule (f (a x) y) (f x (a y)))
(rule (f (b x) y) (f x (b y)))
(rule (f (c x) y) (f x (c y)))