@InProceedings{berkholz_et_al:LIPIcs.STACS.2024.12, author = {Berkholz, Christoph and Kuske, Dietrich and Schwarz, Christian}, title = {{Modal Logic Is More Succinct Iff Bi-Implication Is Available in Some Form}}, booktitle = {41st International Symposium on Theoretical Aspects of Computer Science (STACS 2024)}, pages = {12:1--12:17}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-311-9}, ISSN = {1868-8969}, year = {2024}, volume = {289}, editor = {Beyersdorff, Olaf and Kant\'{e}, Mamadou Moustapha and Kupferman, Orna and Lokshtanov, Daniel}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2024.12}, URN = {urn:nbn:de:0030-drops-197228}, doi = {10.4230/LIPIcs.STACS.2024.12}, annote = {Keywords: succinctness, modal logic} }