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An existential graph is a type of diagrammatic or visual notation for logical expressions, created by Charles Sanders Peirce, who wrote on graphical logic as early as 1882, [1] and continued to develop the method until his death in 1914.
A logical graph is a special type of graph-theoretic structure in any one of several systems of graphical syntax that Charles Sanders Peirce developed for logic.. In his papers on qualitative logic, entitative graphs, and existential graphs, Peirce developed several versions of a graphical formalism, or a graph-theoretic formal language, designed to be interpreted for logic.
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Unfortunately, I do not know how to marry the output of graphics software to a Wikipedia entry. For that matter, I can create only alpha graphs on a computer, using boxes rather than ovals. If you would like to marry your graphics skills to my passion for the existential graphs, contact philip.meguire@canterbury.ac.nz
The term diagrammatology is often used synonymously with diagrammatics, however diagrammatics tends to be more common place within the fields of Mathematics (especially logic), the sciences and technology.
The question does not include the timing of when anything came to exist. Some have suggested the possibility of an infinite regress, where, if an entity cannot come from nothing and this concept is mutually exclusive from something, there must have always been something that caused the previous effect, with this causal chain (either deterministic or probabilistic) extending infinitely back in ...
Many of the founding figures of existentialism represent its diverse background (clockwise from top left): Dane Søren Kierkegaard was a theologian, German Friedrich Nietzsche an anti-establishment wandering academic, Czech Franz Kafka a short-story writer and insurance assessor, and Russian Fyodor Dostoyevsky a novelist
The existential closure in K of a member M of K, when it exists, is, up to isomorphism, the least existentially closed superstructure of M. More precisely, it is any extensionally closed superstructure M ∗ of M such that for every existentially closed superstructure N of M , M ∗ is isomorphic to a substructure of N via an isomorphism that ...