
Does having a countable network guarantee countable subnetworks?
7+ min ago —
About finding the angle scale $left(overrightarrow{DE},overrightarrow{CB}right)$
17+ min ago —...description here] I want to find the angle scale $left(overrightarrow{DE... ...overrightarrow{CE}right)=dfrac{3pi}{8}$ but $left(overrightarrow{DE...

Example of a certain lattice with $q$ coatoms and less than $4q+5$ elements
12+ min ago —
Characterizations of irregular primes and indices of irregularity
26+ min ago —...Kummer gave a beautiful criterion for when a prime is regular in...

Geometric Realization of Nerve of a Hypercovering (Example)
38+ min ago —...Let $X = Bbb P^1$ be the Riemann sphere.... ...First, we cover $X$ by "nice" Zariski open subsets $U_1, ... , U_N...

Does there exist a natural number $n>2$ such that $f^{(n)}(x)=f^n(x)$ never holds for any non-constant function $f(x)$?...
38+ min ago —
Alternat definition for Cohen Macauly and homogenous system of parameters.
1+ hour, 5+ min ago —...are reading the book "Algorithms in Invariant Theory" by Bernd Strumfels...

Maximum likelihood method for uniform distribution
1+ hour, 4+ min ago —...Mike assumes that all plant categories are equally likely to occur... ...Going to the forest, Mike found 2 green plants, 1 blue and 1 yellow...

Why do we need the axiom of choice in this particular case?
29+ min ago —...I mean we're just using a logic law that should be independent of... ...$endgroup$ â Ben Grossmann Commented 8 mins ago You must log...
