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Mar
25
comment How to distribute n distinct balls into r numbered boxes?
why must each box get at least one ball?
Mar
25
answered How to distribute n distinct balls into r numbered boxes?
Mar
25
comment Showing $(\mathbb{Q},+)$ is not isomorphic to $(\mathbb{R},+)$
@K.Dutta what manthanomen says is true.
Mar
24
answered Find All NonIsomorphic Undirected Graphs with Four Vertices
Mar
24
comment Find All NonIsomorphic Undirected Graphs with Four Vertices
yes, it would, it shouldn't take too long to do it like that.
Mar
24
comment Find All NonIsomorphic Undirected Graphs with Four Vertices
I assume no multiedges are allowed.
Mar
24
comment Showing $(\mathbb{Q},+)$ is not isomorphic to $(\mathbb{R},+)$
I saw the thing about the quotients some time ago on the web and I just now realized it can be reworded into this.
Mar
24
comment Showing $(\mathbb{Q},+)$ is not isomorphic to $(\mathbb{R},+)$
I re-wrote it so that it does not use the quotient notation but conveys the same idea.
Mar
24
revised Showing $(\mathbb{Q},+)$ is not isomorphic to $(\mathbb{R},+)$
deleted 121 characters in body
Mar
24
answered Showing $(\mathbb{Q},+)$ is not isomorphic to $(\mathbb{R},+)$
Mar
24
comment Rectangles in a modified chessboard
but then he says of the 4 corner unit squares two where removed, perhaps that means only one of the diagonals is removed?
Mar
24
comment Rectangles in a modified chessboard
So you removed $10$ tiles in total?
Mar
24
answered Dividing a class into groups
Mar
24
answered Onto and One to one functions given composite is also onto or one to one
Mar
24
answered Chinese Remainder Theorem for $x\equiv 0 \pmod{y}$
Mar
24
reviewed Approve Chinese Remainder Theorem for $x\equiv 0 \pmod{y}$
Mar
24
revised Is R reflexive? symmetric? transtitive?
deleted 80 characters in body
Mar
24
comment Is R reflexive? symmetric? transtitive?
Ugh, thank you.
Mar
24
answered Is R reflexive? symmetric? transtitive?
Mar
24
comment How to show that $\langle A,B \rangle = a_{11}b_{11}+a_{12}b_{12}+a_{21}b_{21}+a_{22}b_{22}$ is an inner product on $M_{2x2}$?
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