maths.free › Probability Theory › Applying Probability to Combinatorics › Ramsey's Theorem

Ramsey's Theorem

By this time, you are probably not surprised to see that there is a very general form of Ramsey's theorem. We have a bounded number of bins or colors and we are placing the subsets of a fixed size into these categories.

Ramsey's Theorem

By this time, you are probably not surprised to see that there is a very general form of Ramsey's theorem. We have a bounded number of bins or colors and we are placing the subsets of a fixed size into these categories. The conclusion is that there is a large set which is treated uniformly.

Here's the formal statement.

We don't include the proof of this general statement here, but the more ambitious students may attempt it on their own. Note that the case \(s=1\) is just the , while the case \(s=r=2\) is just . An argument using double induction is required for the proof in the general case. The first induction is on \(r\) and the second is on \(s\).

Nå har du Ingen kalkulator setter opp denne, men brikkene kan brukes. Prøv en nedenfor eller skriv inn din egen.

Fortsett ditt eget arbeid

En gratis konto legger til notater om hver leksjon, en oversikt over hva du har fullført, problemene du har løst på ett sted og en lærer du kan spørre om. Matematikkene er åpne for alle, signerte på eller ikke.

Registrer Logg inn

Symboler som brukes her

Trykk på et symbol for den fulle definisjonen, et bilde og hva hver bokstav i det betyr.

Spørsmål folk stiller

What is the difference between probability and statistics?

Probability goes from a known model to what the data should look like; statistics goes from data back to the model. Probability theory is the deductive half.

What does the law of large numbers promise?

That the average of many independent samples converges to the expected value. It says nothing about any single trial.

Deler av denne siden er tilpasset fra Keller & Trotter, Applied Combinatorics (CC BY-SA 4.0). Kondensert og re-forklaret her, feil er vår.

Mer i Probability Theory