Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
 adjective Reversed in order, nature, or effect.
 adjective Mathematics Of or relating to an inverse or an inverse function.
 adjective Archaic Turned upside down; inverted.
 noun Something that is opposite, as in sequence or character; the reverse.
 noun Mathematics One of a pair of elements in a set whose result under the operation of the set is the identity element, especially.
 noun The reciprocal of a designated quantity.
 noun The negative of a designated quantity.
from The Century Dictionary.
 In logic, with conclusion as hypothesis and hypothesis as conclusion.
 noun In logic, a proposition made by simply interchanging the hypothesis and conclusion of another, without any restriction.
 noun In mathematics, an inverse point, curve, function, ratio, proportion, etc.
 noun In rougeetnoir, the triangular space in which bets are placed when wagering that the first card dealt for a color will not be the same color as the one that wins the coup: opposed to
couleur . Seerougeetnoir .  Turned end for end, or in the opposite direction; having a contrary course or tendency; inverted: opposed to direct.
 In mathematics, opposite in nature and effect: said with reference to any two operations which, when both performed in succession upon the same quantity, leave it unaltered: thus, subtraction is inverse to addition, division to multiplication, extraction of roots to the raising of powers, etc.
 noun An inverted state or condition; a direct opposite; something directly or absolutely contrary to something else: as, the inverse of a proposition.
from the GNU version of the Collaborative International Dictionary of English.
 adjective Opposite in order, relation, or effect; reversed; inverted; reciprocal;  opposed to
direct .  adjective (Bot.) Inverted; having a position or mode of attachment the reverse of that which is usual.
 adjective (Math.) Opposite in nature and effect;  said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity. The symbol of an inverse operation is the symbol of the direct operation with 1 as an index. Thus sin1 x means the arc or angle whose sine is x.
 adjective (Geom.) two figures, such that each point of either figure is inverse to a corresponding point in the order figure.
 adjective (Geom.) two points lying on a line drawn from the center of a fixed circle or sphere, and so related that the product of their distances from the center of the circle or sphere is equal to the square of the radius.
 adjective (Math.) the ratio of the reciprocals of two quantities.
 adjective an equality between a direct ratio and a reciprocal ratio; thus, 4 : 2 : : 1/3 : 1/6, or 4 : 2 : : 3 : 6,
inversely .  noun That which is inverse.
from Wiktionary, Creative Commons Attribution/ShareAlike License.
 adjective
Opposite in effect or nature or order  adjective
reverse , opposite in or order  adjective mathematics Having the properties of an inverse.
 adjective A grammatical number marking that indicates the opposite grammatical number (or numbers) of the default number specification of noun class.
 noun The
opposite of a given, due to contrary nature or effect.  noun The
reverse version of aprocedure .  noun mathematics The inverse of an element x with respect to a
binary operation is an element that when combined with x yields the appropriateidentity element .  noun logic A statement constructed from the
negatives of thepremise andconclusion of some other statement: ~p → ~q is the inverse of p → q.  verb surveying To compute the
bearing anddistance between twopoints .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
 noun something inverted in sequence or character or effect
 adjective opposite in nature or effect or relation to another quantity
 adjective reversed (turned backward) in order or nature or effect
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/ShareAlike License
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Examples

Von Storch et al 2004 and BàÆ'à⻲ger et al 2006 appear to use the term inverse regression in a different sense and we urge that readers exercise some caution in ensuring that they have familiarized themselves with the specific methods of these two articles to ensure that they draw appropriate conclusions from them.

However, since the inverse is also nonaxiomatic, I assume that someone at the âdinner debateâ had taken the opposite viewpoint and this student felt the need to send an email in order to clarify her position (as well as try to win the debate).
The Volokh Conspiracy » 1. Science, Faith, and Not Ruling Out Possibilities 2010

I know that reaching out allows reaching inward and the inverse is also true.
What I Know For Sure 2008

Mill therefore recommended what he called the inverse deductive method: he saw his discussion of this method in his
John Stuart Mill Wilson, Fred 2007

If you go on to the next slide, it is what I call the inverse law of Omni Media gaming.
unknown title 2008

Repukes feign a desire for smaller government while lining their pockets at the expense of those who stand by them in inverse solidarity.

Of course the inverse is true, in that the less important or troubled a cause, the more attention it receives.

Since I've spent quite a bit of time writing about how dancey pop has become in the past few years, it only follows that the inverse is true.
fourfour: 2009

Law Number LIII: The thinness of the rocket shall be in inverse proportion to the chances of the development of said rocket coming to fruition

The inverse is also true; if trust is low, the leader and organization pay a huge trust tax.
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