Before revision: The "philosophical branch" followed Twardowski's tradition and produced notable thinkers such as Bronisław Bandrowski, who addressed the problem of induction and Tadeusz Kotarbinski , who is known for developing Reism.
After revision: The "philosophical branch" followed Twardowski's tradition and produced notable thinkers such as Bronisław Bandrowski, who addressed the problem of induction and Tadeusz Kotarbiński , who is known for developing Reism.