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(no͞o`mənŏn'), in the philosophical system of Immanuel KantKant, Immanuel
, 1724–1804, German metaphysician, one of the greatest figures in philosophy, b. Königsberg (now Kaliningrad, Russia). Early Life and Works
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, a "thing-in-itself"; it is opposed to phenomenonphenomenon,
an observable fact or event; in philosophy the definitions and uses of the term have varied. In the philosophy of Aristotle phenomena were the objects of the senses (e.g., sights and sounds), as opposed to the real objects understood by the mind.
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, the thing that appears to us. Noumena are the basic realities behind all sensory experience. According to Kant, they are not knowable because they cannot be perceived, but they must be thinkable because moral decision making and scientific investigation cannot proceed without the assumption that they exist.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a term widely used in medieval and modern philosophy to signify something that can be perceived by the mind, unlike the phenomenon, which is given in experience and is perceived through the senses.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
One form of possible experience, Kant shows us, is "relation." This means, importantly, that relation, as we experience it, is never a quality of things-in-themselves, or noumena. Nor are any of the other categories inherent to noumena.
This way, most people are mistaken in their belief that Genius and talent are equivalent, for Genius is, indeed, "separated from all else by an entire world, that of noumena", and not situated "within the spectrum of all linearly predictable expectations and contingencies", as Goethe, Schopenhauer, Wilde, Emerson, Weininger, and Wittgenstein would have agreed.
In Museo, the metaphysical residents of La Novela, directed by a fictional author, cross the threshold between the imagined phenomena of the novel and the reasoned noumena of the city, working in the open, not attempting to conceal their purpose.
On the other side were mind (or spirit), noumena, perceiving subjects, subjectivity, values, emotion (or passion), faith, and religion.
Unless one is already at home negotiating the metaphysical landscape of realism, nominalism, conceptualism, voluntarism, phenomena, noumena, and phenomenology, the story Pontynen tells may be difficult to follow.
(31) Most unsatisfying is the implication that the real world of nature is still outside our reach, when the world of nature is conceived of as "a joint product" of the human mind and noumena. Frustration arising out of this epistemological chasm has given many philosophers the nerves, and it is precisely here that McDowell's "naturalisim" has force.
In the sense of the post-Kantian epistemological theory of Reality outlined in [1], Genius is indeed not even a "superlative of talent" and is separated from all else by an entire world of noumena. In terms of the ontological, multiteleological reality alluded to therein, which embraces also the eidetic-noumenal "surject" (or "qualon", which is beyond mere "omnijectivity" and "inter-subjectivity") in addition to the usual reflection ("object"), projection ("subject"), and annihilation ("abject") in a certain domain of epistemological dimensionality ("prefect"), Genius is said to be "noumenalreflective" ("surjective"), while talent is termed "reflectiveprojective" ("phenomenal-reflexive").
Whereas in Pyrrhonism Kant found a serious challenge to the dogmatic metaphysics he adopted before the mid-1760s, in Humean skepticism he found a serious challenge to the momentary metaphysical relapse he suffered in his Inaugural Dissertation of 1770, in which he held that the intellect can acquire knowledge of supersensible noumena. Hume's attack on causation reinforced Kant's worries about the existence and reference of a priori concepts and the possibility of synthetic a priori knowledge.
What this means is that the distinction I draw between the terms in Cox's list is not the distinction between phenomena and noumena but between request and response.
object level abstracted from noumena, the level consisting of the names
Kant defines "noumena" in opposition to "phenomena"--"phenomena" (a "mundus sensibilis") being the "world of the senses"--and "noumena" (a "mundus ...
Hegel, however, famously dispensed with Kant's noumena (the inherently unknown but posited "real things" hidden behind the appearances), which left us with only the phenomena and a systematic study of them ("phenomenology"), a move that came to its final conclusion in Dilthey's axioms: (1) "The world exists nowhere else but in the representations of men." (2) "Nature is alien to us.