Exercise 9.B.7

Answers

Proof. We have

M (T_{1} \dots T_{m}) = M (T_{1}) \dots M (T_{m}) = M (T),

where the second equality follows from Exercise 9 in section 8B. The left and right side of the equation above imply that $T_{1} \dots T_{m} = T$ . □

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2017-10-06 00:00