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Abstraction

Abstraction

1. The act of abstracting, separating, or withdrawing, or the state of being withdrawn; withdrawal. A wrongful abstraction of wealth from certain members of the community. (j. S. Mill)

2. (Science: psychology) The act process of leaving out of consideration one or more properties of a complex object so as to attend to others; analysis. Thus, when the mind considers the form of a tree by itself, or the colour of the leaves as separate from their size or figure, the act is called abstraction. So, also, when it considers whiteness, softness, virtue, existence, as separate from any particular objects.

abstraction is necessary to classification, by which things are arranged in genera and species. We separate in idea the qualities of certain objects, which are of the same kind, from others which are different, in each, and arrange the objects having the same properties in a class, or collected body. Abstraction is no positive act: it is simply the negative of attention. (Sir W. Hamilton)

3. An idea or notion of an abstract, or theoretical nature; as, to fight for mere abstractions.

4. A separation from worldly objects; a recluse life; as, a hermit's abstraction.

5. Absence or absorption of mind; inattention to present objects.

6. The taking surreptitiously for one's own use part of the property of another; purloining.

7. (Science: Chemistry) a separation of volatile parts by the act of distillation.

Origin: cf. F. Abstraction. See abstract.


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Re:

you want to define exactly everything, so how do you define concept? An abstraction removing differences, leaving only commonalities - in this way: The many things that are detected to contain salt, have many differences - differences which are ignored in pointing ...

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by Crucible
Mon Oct 31, 2011 1:30 pm
 
Forum: Evolution
Topic: Why are flowers "beautiful"?
Replies: 112
Views: 56191

Re:

... of an organism that may be inherited, environmentally determined or be a combination of the two.[1] For example, eye color is a character or abstraction of an attribute, while blue, brown and hazel are traits. A phenotypic trait is an obvious and observable trait; it is the expression of ...

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by Crucible
Mon Oct 24, 2011 11:29 am
 
Forum: Evolution
Topic: The Genie and the Bottle; When a Genotype is not a Genotype
Replies: 6
Views: 5606

Re: Experimental evidence for evolution

... rapeseed ;) although I guess you could probably get quite some oil if you were to press me... More seriously: True randomness as a mathematical abstraction and life do not completely intersects… May I correct you, randomness is not a mathematical abstraction. If a sequence is unpredictable, ...

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by canalon
Thu Sep 02, 2010 3:54 pm
 
Forum: Evolution
Topic: Experimental evidence for evolution
Replies: 103
Views: 177622

Re: Experimental evidence for evolution

canolan True randomness as a mathematical abstraction and life do not completely intersects… May I correct you, randomness is not a mathematical abstraction. If a sequence is unpredictable, we call it "random". Stated another way, outcomes ...

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by jevg
Thu Sep 02, 2010 12:33 pm
 
Forum: Evolution
Topic: Experimental evidence for evolution
Replies: 103
Views: 177622

Experimental evidence for evolution

True randomness as a mathematical abstraction and life do not completely intersects. Mutation can be generated randomly but some things might directly impact the visible outcome: - the mechanisms generating the mutations might act randomly ...

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by canalon
Wed Sep 01, 2010 10:48 pm
 
Forum: Evolution
Topic: Experimental evidence for evolution
Replies: 103
Views: 177622
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