restriction

American Heritage Dictionary:

re·stric·tion

(rĭ-strĭk'shən) pronunciation

1. The act of restricting.
2. The state of being restricted.
Something that restricts; a regulation or limitation.

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restriction

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In general: any limitation.

Real estate: limitation placed upon the use of property, for example, as contained in the deed or other written instrument in the chain of title or in local ordinances pertaining to land use.

Previous:	Restricted Surplus, Restricted Securities, Restraint On Alienation
Next:	Restrictive Covenant, Restructuring, Retail

Barron's Real Estate Dictionary:

restriction

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A limitation placed upon the use of property, contained in the deed or other written instrument in the chain of title or in local ordinances pertaining to land use.
See encumbrance.

Examples: The ownership of property is subject to several restrictions. A deed covenant may restrict development alternatives, as may a local zoning ordinance .
easements may restrict use of parts of the property.
liens may restrict sales.
building codes may restrict construction practices.

Previous:	Restricted-Use Appraisal Report, Restricted License
Next:	Restrictive Covenant, Retail Gravitation

Roget's Thesaurus:

restriction

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noun

The act of limiting or condition of being limited: circumscription, confinement, constraint, limitation, restraint. See limited/unlimited.
Something that limits or restricts: check, circumscription, constraint, cramp², curb, inhibition, limit, limitation, restraint, stricture, trammel. See limited/unlimited.

Antonyms by Answers.com:

restriction

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Definition: limit
Antonyms: enlargement, expansion, freedom, release

The Jargon File's Guide to Hacker Slang:

restriction

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A bug or design error that limits a program's capabilities, and which is sufficiently egregious that nobody can quite work up enough nerve to describe it as a feature. Often used (esp. by marketroid types) to make it sound as though some crippling bogosity had been intended by the designers all along, or was forced upon them by arcane technical constraints of a nature no mere user could possibly comprehend (these claims are almost invariably false).

Old-time hacker Joseph M. Newcomer advises that whenever choosing a quantifiable but arbitrary restriction, you should make it either a power of 2 or a power of 2 minus 1. If you impose a limit of 107 items in a list, everyone will know it is a random number — on the other hand, a limit of 15 or 16 suggests some deep reason (involving 0- or 1-based indexing in binary) and you will get less flamage for it. Limits which are round numbers in base 10 are always especially suspect.

McGraw-Hill Dictionary of Architecture & Construction:

restriction

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On land, an encumbrance limiting its use; usually imposed for community or mutual protection.

The Dream Encyclopedia:

Restriction

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Any form of restriction in a dream often mirrors some frustration in the dreamer's personal or business life. The dreamer may be imposing restrictions on himself or herself as well as on others.

Oxford Dictionary of Biochemistry:

restriction

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(in molecular biology) the action or use of restriction endonucleases. See also restrictive.

Previous:	restricted virus, restricted DNA, resting state
Next:	restriction analysis, restriction endonuclease, restriction enzyme

Rhymes:

restriction

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See words rhyming with "restriction."

Wikipedia on Answers.com:

Restriction (mathematics)

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This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2009)

For other uses, see Restriction (disambiguation).

In mathematics, the notion of restriction of a function is defined as follows:

If f : E → F is a function from E to F, and A is a subset of E, then the restriction of f to A is the (partial) function

${f|}_A : A \to F$ having the graph $G({f|}_A) = \{ (x,y)\in G(f) \mid x\in A \}$ .

(In rough words, it is "the same function", but only defined on $A\cap \mathrm{dom} \, f$ .)

More generally, the restriction (or domain restriction or left-restriction) A ◁ R of a binary relation R between E and F may be defined as a relation having domain A, codomain F and graph G(A ◁ R) = {(x, y) ∈ G(R) | x ∈ A}. Similarly, one can define a right-restriction or range restriction R ▷ B. (Indeed, one could define a restriction to a subset of E x F, and the same applies to n-ary relations. These cases do not fit into the scheme of sheaves.)

The domain anti-restriction (or domain subtraction) of a function or binary relation R (with domain E and codomain F) by a set A may be defined as (E \ A) ◁ R; it removes all elements of A from the domain E. It is sometimes denoted A ⩤ R. Similarly, the range anti-restriction (or range subtraction) of a function or binary relation R by a set B is defined as R ▷ (F \ B); it removes all elements of B from the codomain F. It is sometimes denoted R ⩥ B.

Examples

The restriction of the non-injective function $f: \mathbb R\to\mathbb R; x\mapsto x^2$ to $\mathbb R_+=[0,\infty)$ is the injection $f: \mathbb R_+\to\mathbb R; x\mapsto x^2$ .
The inclusion map of a set A into a superset E of A is the restriction of the identity function on E to A.

		American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more
		Barron's Business Dictionary. Dictionary of Business Terms. Copyright © 2007 by Barron's Educational Series, Inc. All rights reserved. Read more
		Barron's Real Estate Dictionary. Dictionary of Real Estate Terms. Copyright © 2008 by Barron's Educational Series, Inc. All rights reserved. Read more
		Roget's Thesaurus. Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary Copyright © 1995 byHoughton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Read more
		Antonyms by Answers.com. © 1999-present by Answers Corporation. All rights reserved. Read more
		The Jargon File's Guide to Hacker Slang. The Jargon File. Copyright © 2007. Read more
		McGraw-Hill Dictionary of Architecture & Construction. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved. Read more
		The Dream Encyclopedia. The Dreams Encyclopedia. 1995 ©Visible Ink Press (VisibleInkPress.com). All rights reserved. Read more
		Oxford Dictionary of Biochemistry. Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved. Read more
		Rhymes. Oxford University Press. © 2006, 2007 All rights reserved. Read more
		Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Restriction (mathematics). Read more

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