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"Corollarial Reasoning" in the Commons Dictionary of Peirce's Terms, 2003–present, Mats Bergman and Sami Paavola, editors, University of Helsinki. Peirce, C. S...

Deductive reasoning is the process of drawing valid inferences. An inference is valid if its conclusion follows logically from its premises, meaning that...

Deductive reasoning allows deriving b {\displaystyle b} from a {\displaystyle a} only where b {\displaystyle b} is a formal logical consequence of a...

encompassing nearly all of Peirce's working life), repeatedly vetoed Peirce's employment at the university. Between 1859 and 1891, Peirce was intermittently...

with the inductive reasoning other than deductive reasoning (such as mathematical induction), where the conclusion of a deductive argument is certain...

Dictionary. Definition of the week. Peirce's Existential Graphs, Frithjof Dau, Germany. Peirce's Theory of Semiosis: Toward a Logic of Mutual Affection, Joseph...

In philosophy of logic, defeasible reasoning is a kind of provisional reasoning that is rationally compelling, though not deductively valid. It usually...

Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical...

example, Gilbert Harman claims that deductive logic investigates relations between propositions rather than correct reasoning. He argues that these relations...

conclusions. Reasoning may be subdivided into forms of logical reasoning, such as deductive reasoning, inductive reasoning, and abductive reasoning. Aristotle...

sentential aspects of the associated reasoning processes are concerned. One of the bonuses of doing this in the context of Peirce's logical work is that it provides...

usually minor. The deduction theorem holds for all first-order theories with the usual deductive systems for first-order logic. However, there are first-order...

Probability theory Quantum logic Relevance logic Strict logic Substructural logic Deductive reasoning Inductive reasoning Abductive reasoning Mathematical...

types of knowledge, justification, or argument Abductive reasoning – Inference seeking the simplest and most likely explanation Deductive reasoning – Form...

the development of deductive reasoning, as propounded by his student, Aristotle. In Protagoras (318d-f), Plato mentioned the teaching of arithmetic, astronomy...

being built on deductively. A theory being assumed as true and subsequently built on is a common example of deductive reasoning. Theory building on Einstein's...

first-order logic, such as type theory. Because a full derivation of any nontrivial result in a first-order deductive system will be extremely long for...

Qiyas – Deductive analogy or reasoning by measuring the new situation with the given situation Rhetoric – Art of persuasion Rhetorical reason – Faculty of discovering...

domain Boolean function Boolean logic Causality Deductive reasoning Logic gate Logical graph Peirce's law Probabilistic logic Propositional calculus Sole...

to it. The concept of rigor in mathematics dates back to ancient Greece, where their society encouraged logical, deductive reasoning. However, this rigorous...