A deal to swap goods or services.
A conservative; originally tied to Nicaraguan counter-revolutionaries.
An entry (or account) that cancels another entry (or account).
Any of the musical instruments in the contrabass range, e.g. contrabassoon, contrabass clarinet or, especially, double bass.
A contra dance.
contrary to something
To undo; to reverse.
against; contrary or opposed to; in opposition or contrast to
A ratio etc. in which the antecedents and consequents are switched.
The result of a circle inversion; the set of all such points; the curve described by such a set.
A morphism which is both a left inverse and a right inverse.
The negative of a given number.
A second function which, when combined with the initially given function, yields as its output any term inputted into the first function.
The winning of the coup in a game of rouge et noir by a card of a color different from that first dealt; the area of the table reserved for bets upon such an outcome.
A grammatical number marking that indicates the opposite grammatical number (or numbers) of the default number specification of noun class.
The reverse of any procedure or process.
The non-truth-preserving proposition constructed by negating both the premise and conclusion of an initially given proposition.
One divided by a given number.
An inverted state: a state in which something has been turned (properly) upside down or (loosely) inside out or backwards.
Opposite in effect, nature or order.
Having the properties of an inverse; said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity.
Reverse, opposite in order.
Inverted; having a position or mode of attachment the reverse of that which is usual.
That has the property of being an inverse (the result of a circle inversion of a given point or geometrical figure); that is constructed by circle inversion.
Whose every element has an inverse (morphism which is both a left inverse and a right inverse).
To compute the bearing and distance between two points.