dREaM
Reputation
35,198
97/100 score
 23h revised Can a module have an infinite number of compositions series? added 1 character in body Nov 11 revised Why are triangles, squares and hexagons the only polygons with which it is possible to tile a plane? added 3 characters in body Nov 2 revised Which tuple of arithmetic progression sums does the given integer fall into? added 220 characters in body Nov 2 revised Which tuple of arithmetic progression sums does the given integer fall into? edited tags Nov 1 revised Two quotients of projective modules are equal, prove the crossed direct sums of the projective modules and kernels are isomorphic. (Schanuel's Lemma) edited title Oct 29 revised Every open set in $\mathbb{R}$ is the countable union of rational open intervals added 4 characters in body Oct 29 revised Every open set in $\mathbb{R}$ is the countable union of rational open intervals added 879 characters in body Oct 28 revised Are there any real life applications of the greatest common divisor of two or more integers? deleted 5 characters in body Oct 7 revised Coloring the windmill added 257 characters in body Oct 4 revised For $1\leq n\leq 100$ how many integers are there such that $\frac{n}{n+1}$ is a repeating decimal? added 2 characters in body Sep 27 revised Prove these two elements are not associated in $\mathbb Q[x,y,z]/(x-xyz)$ edited body Sep 24 revised Each finite permutation $f$ is product of $2$-cycles of the form $(i,i+1)$, where $1 \leq i < n$. added 2 characters in body Sep 24 revised Each finite permutation $f$ is product of $2$-cycles of the form $(i,i+1)$, where $1 \leq i < n$. added 177 characters in body Sep 21 revised What is the power set of a set containing an empty set and the set of empty set? added 3 characters in body Sep 18 revised IMO programs of different nations? added 1 character in body Sep 18 revised If $\{1^5,2^5,\ldots, (nm)^5\}$ is a complete residue system mod $nm$, prove $\{1^5,2^5,\ldots,n^5\}$ is a complete residue system mod $n$. deleted 367 characters in body Sep 17 revised In a metric space $(X,d)$, for every Cauchy Sequence in $X$, and $z \in X$, the numeric succession $\{d(x_n;z)\}$ converges added 488 characters in body Sep 17 revised Show a simple, no loop, 3 connected graph for which $\min(\deg(v))> \text { edge connectivity } > \text {vertex- connectivity }$ deleted 28 characters in body Sep 15 revised Use the inclusion-exclusion principle to determine edited body Sep 15 revised Use the inclusion-exclusion principle to determine edited body