How I can prove Ramsey number R(2,3,4) > 8?

Question

I need to prove $R(2,3,4) > 8$ with Ramsey theory. How can I do that?

Andrew Uzzell · Answer 1 · 2013-01-17 12:14:11Z

up vote 2 down vote

Hint: You can't have any edges of color $1$.

answered Jan 17 at 12:14

Andrew Uzzell
854317

Henry · Answer 2 · 2013-01-17 18:28:41Z

up vote 1 down vote

Can you prove $R(3,4) \gt 8$ ?

answered Jan 17 at 18:28

Henry
32.1k11649

@rschwieb This is not a new question. It is, indeed, an answer to the original question. – Andres Caicedo Jan 18 at 6:33

@all Sorry, I mistook this as an out of place question. My bad! – rschwieb Jan 18 at 14:10

2 Answers