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Van der Waerden's Theorem

Prof. Imre Leader, Trinity College, Cambridge

Date Icon Week 5, Tuesday 12 November MT 2013
Time Icon 8:15pm

Suppose that we have a long line of beads, each of which is red or blue. Can we always find three beads of the same colour, equally spaced? So for example if the 4th, 9th and 14th beads were red then this would count.