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Feb
6
comment How many times will the innermost loop be iterated
@Logophobic Indeed. Can you find a combinatorial counting argument for that?
Feb
6
revised Is there a general formula to solve $a^2+b^2+c^2=d^2+e^2+f^2$?
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Feb
6
answered Is there a general formula to solve $a^2+b^2+c^2=d^2+e^2+f^2$?
Feb
6
answered Show if one series converges absolutely then so too does the other.
Feb
6
answered Can a decimal multiplied by another decimal ever equal an integer?
Feb
6
answered Pointwise convergence to zero, with integrals converging to a nonzero value
Feb
6
answered How can we know if the minimal polynomial of a matrix has no multiple products?
Feb
6
comment How can we know if the minimal polynomial of a matrix has no multiple products?
Neither $(x-1)$ nor $(x-2)$ can be the minimal polynomial of your $A$ as it certainly has eigenvectors of eigenvalue $1$ and $-2$. All irreducible factors of $f_A$ must occur in $m_A$ as well, though possible to lower power
Feb
6
revised Heine definition of limit of a function at infinity using sequences
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Feb
6
answered Heine definition of limit of a function at infinity using sequences
Feb
6
answered What is the dimension of $c_0/M$?
Feb
6
revised How many times will the innermost loop be iterated
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Feb
6
answered How many times will the innermost loop be iterated
Feb
6
comment Is it possible to create a software to find formal proofs?
Yes. But finite does not mean practical or even before the end of the Universe
Feb
6
comment Showing that the inferior integrals of two functions are equal.
Should this be something like essential infimum/supremum?
Feb
6
comment Is there a name for the two parts of a complex number?
Since the individual names are real part and imaginary part it seems like calling them the two parts is adequate, but I don't think that is established. I'd definitely prefer "Write down the real and imaginary part of that number". Better long than ambiguous.
Feb
6
revised Proof that $\{\,\left]a,\infty\right [\mid a\in\mathbb{R}\,\}\cup\{\mathbb{R} \}\cup\{\emptyset \}$ is topology of $\mathbb{R}$
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Feb
6
comment Proof that $\{\,\left]a,\infty\right [\mid a\in\mathbb{R}\,\}\cup\{\mathbb{R} \}\cup\{\emptyset \}$ is topology of $\mathbb{R}$
For the union part, I'd suggest a case distinction: If the union is empty or all of $\Bbb R$ we are done. Only in the remaining case, the inf exist is a real number) and then ...
Feb
6
awarded  Enlightened
Feb
6
awarded  Nice Answer