Deduction

Keyword: Deduction


Dictionary Entry | Posted 02/02/2013
Quote from "Letters to F. A. Woods"

I have always, since early in the sixties, recognized three different types of reasoning, viz: 1st, Deduction which depends on our confidence in our ability to...

Dictionary Entry | Posted 02/02/2013
Quote from "A Neglected Argument for the Reality of God"

… constitutes the Second Stage of Inquiry. For its characteristic form of reasoning our language has, for two centuries, been happily provided with the name Deduction.

Deduction has two...

Dictionary Entry | Posted 02/02/2013
Quote from "A Neglected Argument for the Reality of God"

Concerning the question of the nature of the logical validity possessed by Deduction, Induction, and Retroduction, which is still an arena of controversy, I shall confine myself to stating the...

Dictionary Entry | Posted 02/02/2013
Quote from "Letter draft to Mario Calderoni"

… there are but three elementary kinds of reasoning. … The second kind of reasoning is deduction, or necessary reasoning. It is applicable only to an ideal state...

Dictionary Entry | Posted 02/02/2013
Quote from "Syllabus: Nomenclature and Division of Triadic Relations, as far as they are determined"

A Deduction is an argument whose Interpretant represents that it belongs to a general class of possible arguments precisely analogous which are such that in the...

Dictionary Entry | Posted 02/02/2013
Quote from "Lowell Lectures on Some Topics of Logic Bearing on Questions Now Vexed. Eighth Lecture, Abduction"

If we are to give the names of Deduction, Induction, and Abduction to the three grand classes of inference, then Deduction must include every attempt at mathematical...

Dictionary Entry | Posted 02/02/2013
Quote from "Harvard Lectures on Pragmatism: Lecture V"

These three kinds of reasoning are Abduction, Induction, and Deduction. Deduction is the only necessary reasoning. It is the reasoning of mathematics. It starts from a...

Dictionary Entry | Posted 02/02/2013
Quote from "Harvard Lectures on Pragmatism: Lecture V, a deleted passage"

Now, I said, Abduction, or the suggestion of an explanatory theory, is inference through an Icon, and is thus connected with Firstness; Induction, or trying how things will act, is inference...

Dictionary Entry | Posted 02/02/2013
Quote from "Harvard Lectures on Pragmatism: Lecture VI"

Abduction is the process of forming an explanatory hypothesis. It is the only logical operation which introduces any new idea; for induction does nothing but determine a value, and...

Dictionary Entry | Posted 02/02/2013
Quote from "Minute Logic: Chapter I. Intended Characters of this Treatise"

Argument is of three kinds: Deduction, Induction, and Abduction (usually called adopting a hypothesis). An Obsistent Argument, or Deduction...

Dictionary Entry | Posted 02/02/2013
Quote from "Harvard Lectures on Pragmatism: Lecture VI"

In deduction, or necessary reasoning, we set out from a hypothetical state of things which we define in certain abstracted respects. Among the characters to which we pay...

Dictionary Entry | Posted 02/02/2013
Quote from "On the Logic of Drawing History from Ancient Documents Especially from Testimonies (Logic of History)"

This appears to be in harmony with Kant’s view of deduction, namely, that it merely explicates what is implicitly asserted in the premisses. This is what is called a half-truth. Deductions are of...

Dictionary Entry | Posted 02/02/2013
Quote from "On the Logic of Drawing History from Ancient Documents Especially from Testimonies (Logic of History)"

deduction professes to show that certain admitted facts could not exist, even in an ideal world constructed for the purpose, either without the existence of the very fact...

Dictionary Entry | Posted 02/02/2013
Quote from "Smithsonian Institution letters"

Deduction is necessary inference, where we hold to the conclusion because we think we see clearly that the premisses could not, in any constitution of the universe be true...

Dictionary Entry | Posted 02/02/2013
Quote from "Lessons of the History of Science"

Deduction is that mode of reasoning which examines the state of things asserted in the premisses, forms a diagram of that state of things, perceives in the parts...

Dictionary Entry | Posted 02/02/2013
Quote from "The Law of Mind"

The three main classes of logical inference are Deduction, Induction, and Hypothesis. These correspond to three chief modes of action of the human soul. In deduction the mind is under the dominion...

Dictionary Entry | Posted 02/02/2013
Quote from "Lowell Lectures on The Logic of Science; or Induction and Hypothesis: Lecture I"

We must begin, however, with the simplest kind of argumentation - that which is called Deductive reasoning - or as we may call it reasoning from preconceived ideas - that which traces out what is...

Dictionary Entry | Posted 30/01/2013
Quote from "Deduction, Induction, and Hypothesis"

But, because all inference may be reduced in some way to Barbara, it does not follow that this is the most appropriate form in which to represent every kind of inference. On the contrary...

Dictionary Entry | Posted 30/01/2013
Quote from "Deduction, Induction, and Hypothesis"

We may say, therefore, that hypothesis produces the sensuous element of thought, and induction the habitual element. As for deduction, which adds nothing to the premisses, but...

Dictionary Entry | Posted 28/01/2013
Quote from "On a New List of Categories"

In an argument, the premises form a representation of the conclusion, because they indicate the interpretant of the argument, or representation representing it to represent its object. The...

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