retraction

See also: rétraction

English

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retraction (countable and uncountable, plural retractions)

An act or instance of retracting.
A statement printed or broadcast in a public forum which effects the withdrawal of an earlier assertion, and which concedes that the earlier assertion was in error.
(mathematics) A continuous function from a topological space onto a subspace which is the identity on that subspace.

a printed statement to withdraw an earlier assertion

mathematical function