(VAR x y z) (RULES f(s(a),s(b),x) -> f(x,x,x) g(f(s(x),s(y),z)) -> g(f(x,y,z)) cons(x,y) -> x cons(x,y) -> y ) (COMMENT Example 33 from Hirokawa and Middeldorp, RTA'04 )
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