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inverse

   Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson 0.18 sec.
(mathematics)inverse - Given a function, f : D -> C, a function g : C -> D is called a left inverse for f if for all d in D, g (f d) = d and a right inverse if, for all c in C, f (g c) = c and an inverse if both conditions hold. Only an injection has a left inverse, only a surjection has a right inverse and only a bijection has inverses. The inverse of f is often written as f with a -1 superscript.
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Customs have been handed down by ages of repetition, but the punishment for ignoring a custom is a matter for individual treatment by a jury of the culprit's peers, and I may say that justice seldom misses fire, but seems rather to rule in inverse ratio to the ascendency of law.
A Princess of Mars by Burroughs, Edgar Rice View in context
Thoughts of home grew stronger the nearer he approached it- far stronger, as though this feeling of his was subject to the law by which the force of attraction is in inverse proportion to the square of the distance.
War and Peace by Tolstoy, Leo View in context
In proportion as we recede from the earth the action of gravitation diminishes in the inverse ratio of the square of the distance; that is to say,
From The Earth To The Moon by Verne, Jules View in context
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