Existential Graph
Article in Journal  Posted 09/08/2018 Ma, Minghui, Pietarinen, AhtiVeikko (2018). Gamma graph calculi for modal logics We describe Peirce’s 1903 system of modal gamma graphs, its transformation rules of inference, and the interpretation of the brokencut modal operator. We show that Peirce proposed the normality rule...


Article in Journal  Posted 26/03/2018 Atkins, Richard K. (2017). Peirce, Muybridge, and the Moving Pictures of Thought Peirce once called his graphical system of logicthe Existential Graphsthe moving pictures of thought. I argue that Peirce meant that using his graphs to study the movement of thought is akin to...


Manuscript  Posted 18/03/2018 Peirce, Charles S. (19030915). Existential Graphs. MS [R] S28 

Manuscript  Posted 18/03/2018 Peirce, Charles S. (1903). Graphs, Little Account [R]. MS [R] S27 

Manuscript  Posted 05/03/2018 Peirce, Charles S. (1898). On Existential Graphs. MS [R] 484 Robin Catalogue: 

Manuscript  Posted 28/02/2018 Peirce, Charles S. (1908). The First Part of An Apology for Pragmaticism. MS [R] 296 Robin Catalogue: Pragmaticism, Existential Graph, Teridentity, Universal Algebra of Logic, Logic, Objective Generality, Subjective Generality, Graphinstance, Scholastic Realism, Substance, Dissociation, Prescission, Discrimination, Concept, Form, Algebra of Dyadic Relations, Real, Convention, Feeling, Thought, Sign, Dialogue, Nominalism, Categories


Article in Journal  Posted 02/10/2017 Zalamea, Fernando (2017). Peirce's Inversions of the Topological and the Logical. Forgotten Roads for our Contemporary World We present Peirce’s Existential Graphs as systems of geometric logic, where some inversions are proposed between the logical and the topological, the logos and the topos. Imagination, visualization,...


Article in Journal  Posted 02/10/2017 Hammer, Eric (1995). The Calculations of Peirce's 4.453 Analyzes calculations reported by Peirce on beta fragment of the system of existential graphs, its notational variant and firstorder logic. Methodology used by Peirce.


Manuscript  Posted 24/08/2017 Peirce, Charles S. (1906 [c.]). On the System of Existential Graphs Considered as an Instrument for the Investigation of Logic. MS [R] 499(s) Object, Objective Object, Real Object, Dynamical Object, Naïve Interpretant, Rogate Interpretant, Objective Interpretant, Immediate Interpretant, Dynamical Interpretant, Normal Interpretant, Classification of Signs, Thought, Thinking, Pragmatism, Anthropomorphism, F. C. S. Schiller, Logic, Semeiotic, Existential Graph, Abduction, Induction, Deduction, Phaneron, Form, Matter, Natural Classification, Spot, Cyclosis, Chorisis, Loose End, Continuity, Blank, Line of Identity, Continuous Graph, Dissociation, Prescission, Discrimination, Medad, Monad, Pragmaticism


Manuscript  Posted 24/08/2017 Peirce, Charles S. (1906 [c.]). On the System of Existential Graphs Considered as an Instrument for the Investigation of Logic. MS [R] 499 Robin Catalogue: 

Manuscript  Posted 24/08/2017 Peirce, Charles S. (1906 [c.]). On Existential Graphs as an Instrument of Logical Research. MS [R] 498 Robin Catalogue: 

Article in Journal  Posted 17/04/2017 Bellucci, Francesco, Pietarinen, AhtiVeikko (2016). From Mitchell to Carus: Fourteen Years of Logical Graphs in the Making We analyze the steps that took Peirce from his early 1882 proposals to represent logic by graphs to the advent of the full theory of quantification in his 1896 logic of Existential Graphs.


Article in Journal  Posted 13/03/2017 GrattanGuinness, Ivor (2002). Reinterpreting '': Kempe on Multisets and Peirce on Graphs, 18861905 Presents an article concerned with an interaction between A.B. Kempe and C.S. Peirce which involved novelties in mathematics and logic during the 1880s and 1890s. Details on Peirce's development...


Article in Journal  Posted 14/02/2017 Oostra, Arnold, Díaz, Daniela (2016). Álgebras booleanas libres en álgebra, topología y lógica In this paper we review the appearance of free Boolean algebras in various contexts of Mathematics. Next we build a representation of finite free Boolean algebras by means of Peirce's Alpha...


Article in Journal  Posted 25/03/2016 Norman, Jesse (2003). Provability in Peirce's Alpha Graphs Argues that a proof in the notion of provability in the alpha Existential Graphs (EG) can be seen sequentially and as a single whole graph. Mistake of restricting the notion of provability in EG to...


Article in Journal  Posted 22/03/2016 Houser, Nathan (2015). Being in the world This essay addresses a question raised by Helmut Pape: "What logical, semiotical and mental structure does our consciousness have to have in order to establish the proper link between perception...


Article in Journal  Posted 13/02/2016 White, Richard B. (2006). A Simple Automation of a Peircean Decision Procedure The article describes a simple decision procedure for the graphical sentential logic of philosopher C. S. Pierce, the system of alpha graphs. The decision procedure is then implemented by a LISP...


Monograph  Posted 22/01/2016 Slater, Gary (2015). C.S. Peirce and the Nested Continua Model of Religious Interpretation This study develops resources in the work of Charles S. Peirce (18391914) for the purposes of contemporary philosophy. It contextualizes Peirce's prevailing influences and provides greater... 

Article in Journal  Posted 19/01/2016 Hammer, Eric M. (1998). Semantics for Existential Graphs 

Manuscript  Posted 08/01/2015 Peirce, Charles S. (1903). C. S . Peirce's Lowell Lectures for 1903. Lecture 4.. MS [R] 467 Robin Catalogue: Gamma Graph, Alpha Graph, Beta Graph, Quincuncial Projection, Logic of Relatives, Quality, Broken Cut, Modal Proposition, Time, Error, Ignorance, Potential, Exact Logic, Augustus De Morgan, George Boole, William Stanley Jevons, Ernst Schröder, Oscar Howard Mitchell, Entitative Graph, Existential Graph
