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 Redefining $f(x,y) = x \cdot y \cdot \sin(1/x)\cdot \sin(1/y)$
 Are reals with discrete metric a $F$ space.
 Conjectures on Twin Euler Bricks
 Actual change vs instantaneous change for multiple variables
 Cellular boundary map $d_{1}:H_{1}(X^{1},X^{0} \rightarrow H_{0}(X^{0})$ same as simplicial boundary map $\Delta_{1}X \rightarrow \Delta_{0}
 Regarding standard basis and coordinate vectors
 Help with the Plancherel measure and the norm, on $\mathbb{T}$ and $C_0 (\mathbb{T}) \cap L^1 (\mathbb{T})\}$ respectively.
 S→∃x.Q(x) ⊢ ∃x.(S→Q(x)): How to prove the validity of this sequent in predicate logic?
 Fourier transform of $\text{sech}^4(x)$.
 $r$regular graph with dimension $2$
 Embedding compactly in Lebesgue spaces
 Probability Mass Function and CDF of a function with random variables
 Inverse or approximation to the inverse of a sum of block diagonal and diagonal matrix
 Need help solving exponential linear equation used to compare the value of a fixed annuity vs. an increasing annuity
 A number theoretical problem related to inverse sum of divisors
 I'm stuck at integrating an arc length over a circle
 Examples of proper loops in $\mathbb{R}$
 Models having the same standard system
 Can the product of 4 distinct numbers be equal to a fourth power?
 Upper bound on the size of the maximum independent set
Is there a material that blocks static magnetic field?
6 days ago
Is there a material that blocks static magnetic field? So that if I put it between a magnet and a piece of metal, they won't interact each other?
A sheet of lead will do that quite nicely.

A sheet of lead will do that quite nicely.
6 days ago