what is s theory


Theory - Wikipedia, the free encyclopedia

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** Theory **

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For theories in science, see scientific theory. For other uses, see Theory
(disambiguation).

Part of a series on
Certainty
· Agnosticism
· Approximation
· Belief
· Certainty
· Doubt
· Determinism
· Epistemology
· Fallibilism
· Fatalism
· Hypothesis
· Justification
· Nihilism
· Probability
· Scientific theory
· Skepticism
· Solipsism
· *Theory*
· Truth
· Uncertainty

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*Theory* is a contemplative and rational type of abstract or generalizing
thinking, or the results of such thinking. Depending on the context, the
results might for example include generalized explanations of how nature
works. The word has its roots in ancient Greek, but in modern use it has
taken on several different related meanings. A theory is not the same as a
hypothesis. A theory provides an explanatory framework for some
observation, and from the assumptions of the explanation follows a number
of possible hypotheses that can be tested in order to provide support for,
or challenge, the theory.

A theory can be /normative/ (or prescriptive),^[1]^[/page needed/] meaning
a postulation about what ought to be. It provides "goals, norms, and
standards". A theory can be a body of knowledge, which may or may not be
associated with particular explanatory models. To theorize is to develop
this body of knowledge.^[2]^:46

As already in Aristotle's definitions, theory is very often contrasted to
"practice" (from Greek /praxis/, πρᾶξις) a Greek term
for "doing", which is opposed to theory because pure theory involves no
doing apart from itself. A classical example of the distinction between
"theoretical" and "practical" uses the discipline of medicine: medical
theory involves trying to understand the causes and nature of health and
sickness, while the practical


Source: en.wikipedia.org/wiki/Theory

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