An entitative graph is an element of the graphical syntax for logic that Charles Sanders Peirce developed under the name of qualitative logic in the 1880's, taking the coverage of the formalism only as far as the propositional or sentential aspects of logic are concerned. A diagram of a graph with 6 vertices and 7 edges. ... Syntax, originating from the Greek words συν (syn, meaning co- or together) and τάξις (táxis, meaning sequence, order, arrangement), can in linguistics be described as the study of the rules, or patterned relations that govern the way the words in a sentence come together. ... Logic, from Classical Greek λόγος (logos), originally meaning the word, or what is spoken, (but coming to mean thought or reason) is most often said to be the study of arguments, although the exact definition of logic is a matter of controversy among philosophers. ... Charles Sanders Peirce Charles Sanders Peirce (September 10, 1839 – April 19, 1914) was an American logician, philosopher, scientist, and mathematician. ... In logic, mathematics, and computer science, a formal system is a formal grammar used for modelling purposes. ... In mathematical logic the propositional calculus or sentential calculus is a formal deduction system whose atomic formulas are propositional variables. ...

References

Books

• Peirce, C.S., Collected Papers of Charles Sanders Peirce, Vols. 1-6, Charles Hartshorne and Paul Weiss (eds.), Vols. 7-8, Arthur W. Burks (ed.), Harvard University Press, Cambridge, MA, 1931-1935, 1958.

Articles Charles Sanders Peirce Charles Sanders Santiago Peirce (pronounced purse), (September 10, 1839, Cambridge, Massachusetts – April 19, 1914, Milford, Pennsylvania) was an American polymath. ... Charles Hartshorne (June 5, 1897 – October 9, 2000) was a prominent philosopher who concentrated primarily on the philosophy of religion and metaphysics. ... Paul Weiss is a leading nanoscientist at the Pennsylvania State University. ...

• Peirce, C.S., "Qualitative Logic", MS 736 (c. 1886), pp. 101-115 in The New Elements of Mathematics by Charles S. Peirce, Volume 4, Mathematical Philosophy, Carolyn Eisele (ed.), Mouton, The Hague, 1976.

• Peirce, C.S., "Qualitative Logic", MS 582 (1886), pp. 323-371 in Writings of Charles S. Peirce: A Chronological Edition, Volume 5, 1884-1886, Peirce Edition Project (eds.), Indiana University Press, Bloomington, IN, 1993.

• Peirce, C.S., "The Logic of Relatives: Qualitative and Quantitative", MS 584 (1886), pp. 372-378 in Writings of Charles S. Peirce: A Chronological Edition, Volume 5, 1884-1886, Peirce Edition Project (eds.), Indiana University Press, Bloomington, IN, 1993.

Charles Sanders Peirce Charles Sanders Santiago Peirce (pronounced purse), (September 10, 1839, Cambridge, Massachusetts – April 19, 1914, Milford, Pennsylvania) was an American polymath. ... Charles Sanders Peirce Charles Sanders Santiago Peirce (pronounced purse), (September 10, 1839, Cambridge, Massachusetts – April 19, 1914, Milford, Pennsylvania) was an American polymath. ... Charles Sanders Peirce Charles Sanders Santiago Peirce (pronounced purse), (September 10, 1839, Cambridge, Massachusetts – April 19, 1914, Milford, Pennsylvania) was an American polymath. ...

See also

• Existential graphs
• Laws of Form
• Logical graphs