Examples of using Choice function in English and their translations into Ukrainian
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Colloquial
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Ecclesiastic
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Computer
The first function is the choice function.
That is, the choice function provides the set of chosen elements.
Every set of nonempty sets has a choice function.
Each choice function on a collection X of nonempty sets is an element of the Cartesian product of the sets in X.
This makes it possible to directly define a choice function.
Then our choice function can choose the least element of every set under our unusual ordering.".
In this case,"select the smallest number" is a choice function.
A choice function is a function f, defined on a collection X of nonempty sets, such that for every set A in X, f(A) is an element of A.
There exists a set of nonempty sets which has no choice function.
Every such subset has a smallest element,so to specify our choice function we can simply say that it maps each set to the least element of that set.
This gives us a definite choice of an element from each set andwe can write down an explicit expression that tells us what value our choice function takes.
Authors who use this formulation often speak of the choice function on A, but be advised that this is a slightly different notion of choice function. .
A formal proof for all finite sets would use the principle of mathematical induction to prove"for every natural number k,every family of k nonempty sets has a choice function.
For any set of non-empty sets, X, there exists a choice function f defined on X.
Bertrand Russell coined an analogy: for any(even infinite) collection of pairs of shoes, one can pick out the left shoe from each pair to obtain an appropriate selection;this makes it possible to directly define a choice function.
This method cannot, however, be used to show that everycountable family of nonempty sets has a choice function, as is asserted by the axiom of countable choice. .
If we try to choose an element from each set, then, because X is infinite, our choice procedure will never come to an end, and consequently,we shall never be able to produce a choice function for all of X.
Every such subset has a smallest element,so to specify our choice function we can simply say that it maps each set to the least element of that set.
If we try to choose an element from each set, then, because X is infinite, our choice procedure will never come to an end, and consequently,we will never be able to produce a choice function for all of X.
Every nonempty set of natural numbers has a smallest element,so to specify our choice function we can simply say that it maps each set to the least element of that set.
If we try to choose an element from each set, then, because X is infinite, our choice procedure will never come to an end, and consequently,we will never be able to produce a choice function for all of X. So that won't work.
Every nonempty set of natural numbers has a smallest element,so to specify our choice function we can simply say that it maps each set to the least element of that set.
If we try to choose an element from each set, then, because X is infinite, our choice procedure will never come to an end, and consequently,we shall never be able to produce a choice function for all of X. Next we might try specifying the least element from each set.
If we try to choose an element from each set, then, because X is infinite, our choice procedure will never come to an end, and consequently,we shall never be able to produce a choice function for all of X. Next we might try specifying the least element from each set.
Function choice of apartments.
Character is a function of choice.
Distance function: The choice of distance function is tightly coupled to the choice of ε, and has a major impact on the results.