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(expand "+
")
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+
sigma(0, n - 1,
LAMBDA (i_1: Index[n]):
2 * ((p0!1 - q0!1)(i_1) * (u!1 - v!1)(i_1)))
* t!1
+
sigma(0, n - 1,
LAMBDA (i: Index[n]): (u!1 - v!1)(i) * (u!1 - v!1)(i))
* sq(t!1) =
sigma(0, n - 1,
(LAMBDA (i: Index[n]): (p0!1 - q0!1)(i) * (p0!1 - q0!1)(i)
+ 2 * t!1 *((p0!1 - q0!1)(i) * (u!1 - v!1)(i))
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+ sq(t!1) * (u!1 - v!1)(i) * (u!1 - v!1)(i))
= (LAMBDA (i: Index[n]):
sq(p0!1(i) - q0!1(i) - t!1 * v!1(i) + t!1 * u!1(i)))")
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shostak))
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