How to show, that given sets are Borel set?











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I have 3 sets: [3,4], N, Z. I need to show that thees sets are Borel sets. I see this first time. And have no idea, how to show it... I found that
$(a,b]=cap_{n=1}^infty (a,b+frac{1}{n})$, $a<b$. But how it works here?






probability probability-theory borel-sets







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  • Might this help you?
    – Easymode44
    20 hours ago















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I have 3 sets: [3,4], N, Z. I need to show that thees sets are Borel sets. I see this first time. And have no idea, how to show it... I found that
$(a,b]=cap_{n=1}^infty (a,b+frac{1}{n})$, $a<b$. But how it works here?






probability probability-theory borel-sets







share|cite|improve this question






















  • Might this help you?
    – Easymode44
    20 hours ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have 3 sets: [3,4], N, Z. I need to show that thees sets are Borel sets. I see this first time. And have no idea, how to show it... I found that
$(a,b]=cap_{n=1}^infty (a,b+frac{1}{n})$, $a<b$. But how it works here?






probability probability-theory borel-sets







share|cite|improve this question













I have 3 sets: [3,4], N, Z. I need to show that thees sets are Borel sets. I see this first time. And have no idea, how to show it... I found that
$(a,b]=cap_{n=1}^infty (a,b+frac{1}{n})$, $a<b$. But how it works here?






probability probability-theory borel-sets




probability probability-theory borel-sets






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked 21 hours ago









Atstovas

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  • Might this help you?
    – Easymode44
    20 hours ago


















  • Might this help you?
    – Easymode44
    20 hours ago
















Might this help you?
– Easymode44
20 hours ago




Might this help you?
– Easymode44
20 hours ago















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