Is the measure of a simple closed curve consisting of two arcs transversal to a foliation equal to the sum of the measures of these arcs? Let A be an arc that is the union of arcs B and C, where arc B is transversal to the foliation and arc C is contained in a leaf of the foliation. Is the measure of arc A equal to the measure of arc B? Is the measure of open arc equal to its closure?
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