Logic

Keyword: Logic


Dictionary Entry | Posted 26/08/2015
Quote from "Logic: Fragments [R]"

Logic, in general, seems to be the science of what is universally true respecting scientific representations. In a narrow sense, logic is the science of the general...

Dictionary Entry | Posted 25/08/2015
Quote from "One, Two, Three"

Logic treats of signs. A sign is a third.

Dictionary Entry | Posted 24/08/2015
Quote from "A Search for a Method: Fragments [R]"

Logic is a critic. It distinguishes between what it approves and what it condemns. This is why it must divide propositions by dichotomy.

Dictionary Entry | Posted 26/05/2015
Quote from "Minute Logic: Chapter I. Intended Characters of this Treatise"

Logic is the science of the general necessary laws of Signs and especially of Symbols.

Dictionary Entry | Posted 20/05/2015
Quote from "Syllabus: Syllabus of a course of Lectures at the Lowell Institute beginning 1903, Nov. 23. On Some Topics of Logic"

Logic is the theory of self-controlled, or deliberate, thought; and as such, must appeal to ethics for its principles. It also depends upon phenomenology and upon...

Manuscript | Posted 12/05/2015
Peirce, Charles S. (1905-06 [c.]). Chapter III. The Nature of Logical Inquiry. MS [R] 606

Robin Catalogue:
A. MS., n.p., [1905-06?], pp. 1-29, with 2 pp. of variants.
“Maiotic” method of Socrates. The Athenian Schools and the emergence of Aristotle. Why the logical...

Manuscript | Posted 12/05/2015
Peirce, Charles S. (1905-06 [c.]). Chapter III. The Nature of Logical Inquiry. MS [R] 608

Robin Catalogue:
A. MS., n.p., [1905-06?], pp. 1-3.
Dedekind and Benjamin Peirce on the relationship between logic and mathematics. Is logic mathematics?

Dictionary Entry | Posted 04/05/2015
Quote from "Harvard Lectures on Pragmatism: Lecture V"

Supposing […] that normative science divides into esthetics, ethics, and logic, then it is easily perceived, from my standpoint, that this division is governed by the three categories. For...

Dictionary Entry | Posted 04/05/2015
Quote from "Minute Logic: Chapter IV. Ethics"

It is pretty generally admitted that logic is a normative science, that is to say, it not only lays down rules which ought to be, but need not be followed; but it is the analysis of the...

Dictionary Entry | Posted 04/05/2015
Quote from "A Suggested Classification of the Sciences"

Logic is the science of the classification of arguments. Reasoning is self-controlled thought; and thus Logic is directly dependent upon Ethics, or the science of...

Manuscript | Posted 04/05/2015
Peirce, Charles S. (nd). A Suggested Classification of the Sciences. MS [R] 1339

Robin Catalogue:
A. MS., n.p., n.d., pp. 1-13; 1-6.
Some of the ways in which CSP’s scheme differs from other schemes. CSP’s point of departure is Comte. Division of science...

Manuscript | Posted 04/05/2015
Peirce, Charles S. (nd). Philosophy in the Light of the Logic of Relatives. MS [R] 1336

Robin Catalogue:
A. MS., n.p., n.d., pp. 1-13, unfinished.
Classification of the sciences. Some of the ways in which CSP’s classification differs from Comte’s. The relationship...

Dictionary Entry | Posted 07/04/2015
Quote from "N"

Logic, – I do not mean to define, but only to characterize it, – is supposed to be a science which investigates the principles upon which we are to decide whether any given...

Dictionary Entry | Posted 06/04/2015
Quote from "Lecture I [R]"

The ultimate purpose of the logician is to make out the theory of how knowledge is advanced.

News | Posted 12/02/2015
History and Philosophy of Logic Notations

Notations are an important aspect of modern logic. Since the time of Leibniz at least, logicians have been keenly interested in the properties of logical notations and symbolic systems. One...

Article in Journal | Posted 05/02/2015
Upshur, Ross (1997). Certainty, Probability and Abduction: why we should look to C.S. Peirce rather than Gödel for a theory of clinical reasoning
This paper argues that Gödel's proof does not provide the appropriate conceptual basis on which to counter the claims of evidence-based medicine. The nature of, and differences between,...
Manuscript | Posted 19/01/2015
Peirce, Charles S. (1902 [c.]). Reason's Rules. MS [R] 599

Robin Catalogue:
A. MS., n.p., [c.1902], pp. 4-45, 31-42, and 8 pp. of fragments.
The nature of a sign. Propositions as the significations of signs which represent that some...

Manuscript | Posted 11/01/2015
Peirce, Charles S. (1903). Lowell Lectures. 1903. Sixth Lecture. Probability. MS [R] 472

Robin Catalogue:
A. MS., 2 notebooks, G-1903-2a, pp. 2-130.
Published, in part, as 6.88-97 (pp. 8-62). Omitted: the relationship between logic and mathematics; independence of...

Manuscript | Posted 07/01/2015
Peirce, Charles S. (1903). Useful for 3rd or 4th?. MS [R] 466

Robin Catalogue:
A. MS., notebook, n.p., 1903, pp. 1-28, unfinished, with two p. 19’s, both of which leave text intact.
Mathematics and logic; existential graphs introduced...

Dictionary Entry | Posted 07/01/2015
Quote from "CSP's Lowell Lectures of 1903. 2nd Part of 3rd Draught of Lecture III"

Now it may be that logic ought to be the science of Thirdness in general. But as I have studied it, it is simply the science of what must be and ought to be true...

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