Your assignement:

Read Chapter 3 of [Percolation, Bollobas and Riordan] (you will need some definitions from Chapter 1, as well). Or, have a look at the arxiv for a journal version of the same material. Then sketch a proof for the main theorem proven there: that $p_H(\Z^2)=1/2$.

Be precise in statements, but you may skip details of the proof, as long as you state precisely what was not proven. Keep it below 5-6 pages.

To be handed in by

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