The act of contradicting.
A statement that contradicts itself, i.e., a statement that claims that the same thing is true and that it is false at the same time and in the same senses of the terms.
A logical inconsistency among two or more elements or propositions.
A proposition that is false for all values of its propositional variables or Boolean atoms.
The act of being in an inverted state; being upside down, inside out, or in a reverse sequence.
The position of a chord which has a note other than the root as its bass note.
A situation where air temperature increases with altitude (the ground being colder than the surrounding air).
A section of a roller coaster where passengers are temporarily turned upside down.
An operation on a group, analogous to negation.
The reversal of an interval; the move of one pitch in an interval up or down an octave.
The action of inverting.
The flipping of a melody or contrapuntal line so that high notes become low and vice versa; the reversal of a pitch contour.
Deviation from standard word order by putting the predicate before the subject. It takes place in questions with auxiliary verbs and in normal, affirmative clauses beginning with a negative particle, for the purpose of emphasis.
A segment of DNA in the context of a chromosome that is reversed in orientation relative to a reference karyotype or genome.