Herman Geuvers. Apartness and Distinguishing Formulas in Hennessy-Milner Logic. In Nils Jansen, Mariëlle Stoelinga, Petra van den Bos, editors, A Journey from Process Algebra via Timed Automata to Model Learning - Essays Dedicated to Frits Vaandrager on the Occasion of His 60th Birthday. Volume 13560 of Lecture Notes in Computer Science, pages 266-282, Springer, 2022. [doi]
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