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In set theory, a branch of mathematics, a reflection principle says that it is possible to find sets that resemble the class of all sets. There are several different forms of the reflection principle depending on exactly what is meant by "resemble". Weak forms of the reflection principle are theorems of ZF set theory due to Montague (1961), while stronger forms can be new and very powerful axioms for set theory.
The name "reflection principle" comes from the fact that properties of the universe of all sets are "reflected" down to a smaller set.
prin·ci·ple (prns-pl)
n.
1. A basic truth, law, or assumption: the principles of democracy.
2.
a. A rule or standard, especially of good behavior: a man of principle.
b. The collectivity of moral or ethical standards or judgments: a decision based on principle rather than expediency.
3. A fixed or predetermined policy or mode of action.
4. A basic or essential quality or element determining intrinsic nature or characteristic behavior: the principle of self-preservation.
5. A rule or law concerning the functioning of natural phenomena or mechanical processes: the principle of jet propulsion.
6. Chemistry One of the elements that compose a substance, especially one that gives some special quality or effect.
7. A basic source. See Usage Note at principal.
Idioms:
in principle
With regard to the basics: an idea that is acceptable in principle.
on principle
According to or because of principle.
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[Middle English, alteration of Old French principe, from Latin prncipium, from prnceps, prncip-, leader, emperor; see per1 in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
eth·ic (thk)
n.
1.
a. A set of principles of right conduct.
b. A theory or a system of moral values: "An ethic of service is at war with a craving for gain" (Gregg Easterbrook).
2. ethics (used with a sing. verb) The study of the general nature of morals and of the specific moral choices to be made by a person; moral philosophy.
3. ethics (used with a sing. or pl. verb) The rules or standards governing the conduct of a person or the members of a profession: medical ethics.
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[Middle English ethik, from Old French ethique (from Late Latin thica, from Greek thika, ethics) and from Latin thic (from Greek thik), both from Greek thikos, ethical, from thos, character; see s(w)e- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
This is a guide to assist staff with setting and writing work objectives that are SMART and aligned with faculty/centre's operational plan and ECU's strategic priorities.
•What is a Work Objective?
•Why Set Work Objectives?
•What is SMART?
•What's in it for me?
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