@InProceedings{pimentel_et_al:LIPIcs.CALCO.2023.3, author = {Pimentel, Elaine and Pereira, Luiz Carlos}, title = {{A Tour on Ecumenical Systems}}, booktitle = {10th Conference on Algebra and Coalgebra in Computer Science (CALCO 2023)}, pages = {3:1--3:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-287-7}, ISSN = {1868-8969}, year = {2023}, volume = {270}, editor = {Baldan, Paolo and de Paiva, Valeria}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CALCO.2023.3}, URN = {urn:nbn:de:0030-drops-188003}, doi = {10.4230/LIPIcs.CALCO.2023.3}, annote = {Keywords: Intuitionistic logic, classical logic, modal logic, ecumenical systems, proof theory} }