[分析] About measurable function.
Thm:
If f,g are measurable function,
then f+g and fg are measurable ( if both finite).
問如果沒有 finite 這個條件 , fg 還會是 measuralbe 嗎?
如果是對的,要如何證明呢?
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11/13 23:32, , 1F
11/13 23:32, 1F