Приклади вживання Counterexample Англійська мовою та їх переклад на Українською
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Can anyone give a counterexample?
So, a counterexample, an example that shows that this isn't always true.
S divisible by both, so that's definitely not a counterexample.
Which number serves as a counterexample to the statement below?
An example that disproves a statement is called a counterexample.
A more subtle counterexample is one in which A and B are both closed but neither one is compact.
In 2005, Eskin, Fisher, and Whyte confirmed the counterexample.
Any significant counterexample falsifies the universal claim; eight such examples demolish it.
In constructive mathematics,a statement may be disproved by giving a counterexample, as in classical mathematics.
This sort of counterexample shows that the statement implies some principle that is known to be non-constructive.
It is a small graph that serves as a useful example and counterexample for many problems in graph theory.
Such a counterexample would require that the assumptions underlying the theory that implied the impossibility be re-examined.
Computational experiments have shown that, if a counterexample exists, it would have to have more than 177 vertices.
As a counterexample look on the sign function sgn( x){\displaystyle\operatorname{sgn}(x)} which is defined through.
It was disproven by W. T. Tutte(1946), who constructed a counterexample with 46 vertices; other researchers later found even smaller counterexamples.
Truth is difficult to define because as soon as you think you have it pinned down,some case or counterexample immediately shows deficiencies.
One weak counterexample begins by taking some unsolved problem of mathematics, such as Goldbach's conjecture.
Yet it's difficult to define because as soon as you think you have it pinned down,some case or counterexample immediately shows deficiencies.
For example, the counterexample just shown shows that the quoted statement is"at least as hard to prove" as Goldbach's conjecture.
Although the truth of Barnette's conjecture remains unknown,computational experiments have shown that there is no counterexample with fewer than 86 vertices.
Copyleft software is a counterexample(where Copyright is used to guarantee the right to copy the object and access Sources).
In order to prove the original statement, therefore, it suffices to prove something seemingly much weaker: For any counterexample, there is a smaller counterexample.
In the other directions, Kelmans showed that a counterexample could be transformed into a counterexample to the original Barnette conjecture.
The first Ellingham-Horton graph was published by Ellingham in 1981 and wasof order 78.[6] At that time, it was the smallest know counterexample to the Tutte conjecture.
My counterexample illustrating the limited power of logic and reason, my source of an infinite stream of unprovable mathematical facts, is the number that I call Ω.
Donald Knuth states that the Petersengraph is"a remarkable configuration that serves as a counterexample to many optimistic predictions about what might be true for graphs in general.".
He used combinatorial tools in proving several of Stefan Banach's conjectures in the subject, in particular constructing a Banach space with almost no symmetry,serving as a counterexample to several other conjectures.
While each of the previous three replies might not becompletely convincing by itself as a refutation of the Chinese room counterexample, if you take all three together they are collectively much more convincing and even decisive.
In important situations, I would argue that both kinds of evidence are required, as proofs may be flawed, and conversely computer searches may have thebad luck to stop just before encountering a counterexample that disproves the conjectured result.
In the mathematical field of graph theory, the Horton graph or Horton 96-graph is a 3-regular graph with 96 vertices and 144 edges discovered by Joseph Horton.[1] Published by Bondy and Murty in 1976,it provides a counterexample to the Tutte conjecture that every cubic 3-connected bipartite graph is Hamiltonian.[2][3].