@inproceedings{03bfaab8f5244e9e8bdf13ad0e33ec77,
title = "Assertive and existential graphs: A comparison",
abstract = "Peirce{\textquoteright}s graphical logic of Existential Graphs (egs) has no specific sign for assertion, although the notion is used virtually everywhere in Peirce{\textquoteright}s logical theories. We outline the new system of Assertive Graphs (ags) that makes the embedded notion of assertions in egs explicit, and show how to inferentially transform ags to a classical graphical logic clag, without having to introduce polarities explicitly. We compare the philosophy of notation of ags to egs, where the latter has polarities both in its intuitionistic and classical cases. Our comparison is framed with respect to three different representations of implication, namely as cuts, boxes and scrolls. We also identify three fundamental differences in the meaning of the Sheet of Assertion and compare those with Peirce{\textquoteright}s own proposed interpretation.",
keywords = "Assertion, Assertive graphs, Existential graphs, Implication, Intuitionistic graphs, Polarity, Sheet of assertion",
author = "Pietarinen, {Ahti Veikko} and Daniele Chiffi",
note = "Funding Information: A.-V. Pietarinen—The work supported by the Estonian Research Council Personal Research Grant PUT 1305 (Abduction in the Age of Fundamental Uncertainty, PI Pietarinen), and Nazarbayev University Social Policy Grant 2018–2019. D. Chiffi—The work supported by the Estonian Research Council Personal Research Grant PUT 1305 (Abduction in the Age of Fundamental Uncertainty, PI Pietarinen). Publisher Copyright: {\textcopyright} Springer International Publishing AG, part of Springer Nature 2018.; 10th International Conference on the Theory and Application of Diagrams, Diagrams 2018 ; Conference date: 18-06-2018 Through 22-06-2018",
year = "2018",
month = may,
day = "17",
doi = "10.1007/978-3-319-91376-6_51",
language = "English",
isbn = "9783319913759",
series = "Lecture Notes in Computer Science",
publisher = "Springer Cham",
pages = "565--581",
editor = "Peter Chapman and Gem Stapleton and Amirouche Moktefi and Sarah Perez-Kriz and Francesco Bellucci",
booktitle = "Diagrammatic Representation and Inference",
edition = "1st",
url = "https://link.springer.com/book/10.1007/978-3-319-91376-6",
}