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Nov
24
comment Number of nodes on diagonal planes of a cube
Thanks.........
Nov
24
accepted Number of nodes on diagonal planes of a cube
Nov
24
comment Number of nodes on diagonal planes of a cube
... or maybe $\binom{A}{2} - 3\binom{B}{2} - 3\binom{C}{2}$
Nov
24
comment Number of nodes on diagonal planes of a cube
@Rahul: Right, I see that now. So, the solution will be of the form (A choose 2) - 3 (B choose 2)?
Nov
24
asked Number of nodes on diagonal planes of a cube
Nov
9
answered About a weighted sum of hitting times for random walks on graphs
Nov
3
comment Chinese remainder theorem
How do you justify the second sentence?
Nov
3
comment Chinese remainder theorem
I have added it. Please let me know if it's correct.
Nov
3
answered Chinese remainder theorem
Nov
3
comment Chinese remainder theorem
Yes, I will add it as a solution.
Nov
3
accepted Chinese remainder theorem
Nov
3
revised Chinese remainder theorem
Forgot a condition
Nov
3
comment Chinese remainder theorem
I will update the question. (This problem is a part of a larger problem and I forgot the conditions that I'd used.)
Nov
3
asked Chinese remainder theorem
Oct
28
accepted What is an example of a lambda-system that is not a sigma algebra?
Oct
28
comment What is an example of a lambda-system that is not a sigma algebra?
Even though both answers are correct, I'm going to mark this answer because it gives me a bit of intuition about what's going. The other answer would have been a better solution to an exam question.
Oct
28
comment What is an example of a lambda-system that is not a sigma algebra?
I think you only need relative complement of included sets? I.e., $A \subseteq B \Rightarrow B \setminus A \in L$.
Oct
28
asked What is an example of a lambda-system that is not a sigma algebra?
Sep
21
comment Example where union of increasing sigma algebras is not a sigma algebra
Not to me :) But, even if I were one of your students, I don't think this question goes beyond what students would discuss between themselves.
Sep
21
accepted Why are the sets of rational and irrational numbers Borel sets (over the reals)?