69As a result, the first ground of appeal relied on by the University of Wrocław and the Republic of Poland in support of their respective appeals must be upheld. Accordingly, and without it being necessary to examine the other arguments raised in the second ground of appeal in Case C‑561/17 P, relating to the principle of legal certainty and the right to an effective remedy, or the other grounds raised in the appeals, the order under appeal must be set aside.
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