We propose a new direct presentation of full (propositional) classical logic by means of proof nets, for which strong normalization and confluence hold true. Our proposal is based on the breaking of symmetry between propositional connectives, combined with a principle of focusing/defocusing.
"Proof Nets for Classical Logic." Notre Dame J. Formal Logic 62 (2) 303 - 343, May 2021. https://doi.org/10.1215/00294527-2021-0016