# Coxeter- Exercise 3.4.3

To be obviously self-dual rename QR, RP, and AP as a,b, and c respectively. In addition, d = AP, e=BQ, f = CR, p = BC, q = CA, r = AB, and s = DE.

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To be obviously self-dual rename QR, RP, and AP as a,b, and c respectively. In addition, d = AP, e=BQ, f = CR, p = BC, q = CA, r = AB, and s = DE.

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