Certification Problem

Input (TPDB TRS_Standard/AotoYamada_05/017)

The rewrite relation of the following TRS is considered.

app(app(app(uncurry,f),x),y) app(app(f,x),y) (1)

Property / Task

Prove or disprove termination.

Answer / Result

Yes.

Proof (by ttt2 @ termCOMP 2023)

1 Rule Removal

Using the Knuth Bendix order with w0 = 1 and the following precedence and weight functions
prec(app) = 1 weight(app) = 0
prec(uncurry) = 0 weight(uncurry) = 1
all of the following rules can be deleted.
app(app(app(uncurry,f),x),y) app(app(f,x),y) (1)

1.1 R is empty

There are no rules in the TRS. Hence, it is terminating.