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Apr
16
comment combinations help, 18 boxes, 42 marbles, each box can hold 6 marbles. how many combinations?
One final question, should we count arrangements in which some boxes end up being empty?
Apr
16
comment How to Prove with Mathematical Induction $3^n > n^2$
Thank you JMoravitz, I was considering adding a section on how to prove that statement.
Apr
15
comment combinations help, 18 boxes, 42 marbles, each box can hold 6 marbles. how many combinations?
So the boxes and marbles are all different?
Apr
15
answered How to Prove with Mathematical Induction $3^n > n^2$
Apr
15
revised What subsets of $\mathbb R$ have exactly two limit points?
edited title
Apr
15
comment Complement of a Regular Graph
it means the degree of vertex $v$. The subindex tells you in which graph this degree is being taken. So $\delta_G(v)$ is the degree of $v$ in the graph $G$.
Apr
15
revised Complement of a Regular Graph
added 10 characters in body
Apr
15
revised How do I show that $\mathbb{Z}_4\times\mathbb{Z}_6$ has only 3 subgroups of size 12?
deleted 92 characters in body
Apr
15
answered Complement of a Regular Graph
Apr
15
revised How do I show that $\mathbb{Z}_4\times\mathbb{Z}_6$ has only 3 subgroups of size 12?
deleted 92 characters in body
Apr
15
revised How do I show that $\mathbb{Z}_4\times\mathbb{Z}_6$ has only 3 subgroups of size 12?
deleted 92 characters in body
Apr
15
answered How do I show that $\mathbb{Z}_4\times\mathbb{Z}_6$ has only 3 subgroups of size 12?
Apr
14
comment Book recommendation for Abstract Algebra
You're Welcome, if you want to learn with categories Aluffi uses them a lot more than Rotman.
Apr
14
comment Albert, Bernard and Cheryl popular question (Please comment on my theory)
Oh ok, I didn't know it was a convention.
Apr
14
revised Book recommendation for Abstract Algebra
added 6 characters in body
Apr
14
answered Book recommendation for Abstract Algebra
Apr
14
comment Albert, Bernard and Cheryl popular question (Please comment on my theory)
sorry I meant they should explain how Albert knows that Bernard does not know. This should be explained clearly.
Apr
14
comment Albert, Bernard and Cheryl popular question (Please comment on my theory)
Thanks for the answer, I think that this is the official solution, although I really feel like they should explain how it is that Bernard knows.
Apr
14
revised Albert, Bernard and Cheryl popular question (Please comment on my theory)
added 1 character in body
Apr
14
comment Albert, Bernard and Cheryl popular question (Please comment on my theory)
So basically you are going with the second case?