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[問題]實變一問
由 qeypour 於 星期六 九月 30, 2006 6:45 pm
#ed_op#DIV#ed_cl##ed_op#FONT face=Verdana#ed_cl#(Algebra A) is closed under countable increasing unions#ed_op#BR#ed_cl##ed_op#BR#ed_cl#試證: A is a sigma-algebra#ed_op#/FONT#ed_cl##ed_op#BR#ed_cl##ed_op#/DIV#ed_cl#