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abduction Reference library
The Oxford Companion to Philosophy (2 ed.)
Abductive reasoning accepts a conclusion on the grounds that it explains the available evidence. The term was introduced by Charles

abductive reasoning Reference library
Encyclopedia of Semiotics
is the process of adopting an explanatory hypothesis, which according to Charles Sanders Peirce (1839–1914) is the first

Charles Sanders Peirce
(1839–1914)American philosopher of science and language. Peirce was the son of the distinguished Harvard mathematician Benjamin Peirce, and educated to a mistrust of metaphysical reasoning, compared ...

deduction
The form of reasoning characteristic of logic and mathematics in which a conclusion is inferred from a set of premises that logically imply it. The term also denotes a conclusion drawn by this ...

index
In Charles Sanders Peirce's semiotics, the second part of his tripartite model of the sign's relation to its object (the other two elements are the icon and the symbol). The index sign is ...

indexicality
Is, simply, the property that characterizes a sign as an index according to Charles Sanders Peirce's definitions and examples. However, by a slight shift of emphasis, based at least somewhat ...

inference
The process of moving from (possibly provisional) acceptance of some propositions, to acceptance of others. The goal of logic and of classical epistemology is to codify kinds of inference, and to ...

isotopy
A technical term first introduced by Algirdas Julien Greimas (1966) to account for the semantic consistency of a text, isotopy has been often redefined and discussed in the works of ...

opposition
The logic of opposition, which goes back at least to Aristotle (384–322 bce), makes an important distinction between contradictories (two propositions that cannot be both true or both false) and ...

plausible reasoning
Automatic reasoning techniques in artificial intelligence that involve some degree of risk or uncertainty and so cannot guarantee absolutely correct solutions. Examples include the use of probability ...

reasoning
Any process of drawing a conclusion from a set of premises may be called a process of reasoning. If the conclusion concerns what to do, the process is called practical reasoning, otherwise pure or ...

scientific method
The approach that science uses to gain knowledge, based on making observations, formulating laws and theories, and testing theories or hypotheses by experimentation.

Umberto Eco
(1932– )Italian academic who achieved literary fame with a single novel, The Name of the Rose (1981).Born in Alessandria, Piedmont, Eco studied at Turin University and has devoted his academic career ...
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