A choice function (selector, selection) is a mathematical function f that is defined on some collection X of nonempty sets and assigns to each set S in that collection some element f(S) of S. In other words, f is a choice function for X if and only if it belongs to the direct product of X.
Read more about Choice Function: An Example, History and Importance, Refinement of The Notion of Choice Function
Famous quotes containing the words choice and/or function:
“Therefore is love said to be a child
Because in choice he is so oft beguiled.”
—William Shakespeare (1564–1616)
“The more books we read, the clearer it becomes that the true function of a writer is to produce a masterpiece and that no other task is of any consequence.”
—Cyril Connolly (1903–1974)
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