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15
Math.TechQA.Club
2026-04-11 20:21:43
45
Views
What does 17|nq mean in terms of cases?
Published on
11 Apr 2026 - 20:21
#proof-verification
#proof-writing
98
Views
Proof check of $\zeta(2n)=(-1)^{n+1}\frac{2^{2n-1}B_{2n}\pi^{2n}}{(2n)!}$
Published on
28 Mar 2026 - 4:53
#proof-verification
#improper-integrals
#riemann-zeta
87
Views
Why is this set a circle: $E = \{z \in \mathbb{C} : |z + i| = 2|z|\}$.
Published on
03 Oct 2018 - 1:24
#complex-analysis
#geometry
#proof-verification
220
Views
Is this proof of $(S \cap T)^c=S^c \cup T^c$ valid?
Published on
11 Apr 2026 - 21:47
#proof-verification
#elementary-set-theory
50
Views
Klein model verifies hyperbolic geometry axioms?
Published on
26 Mar 2026 - 1:00
#proof-verification
#model-theory
#hyperbolic-geometry
46
Views
Theorem to show $(m+n)^2$ is even implies $m+n$ is even
Published on
02 Apr 2026 - 7:01
#proof-verification
#proof-explanation
38
Views
Proof verification: Assume that $\forall n:x_{n}<x_{n+1}$ and $\lim\limits_{n \to \infty}x_n=x$. Prove $\forall n:x>x_n.$
Published on
03 Oct 2018 - 6:28
#proof-verification
252
Views
A query while showing that the Gamma function $\Gamma$ is logarithmically convex for $x \gt 0.$
Published on
25 Mar 2026 - 12:48
#complex-analysis
#proof-verification
#logarithms
#gamma-function
#analytic-functions
38
Views
invalid proof positivity of fourier transforms
Published on
27 Mar 2026 - 14:30
#integration
#trigonometry
#proof-verification
#fourier-transform
1.4k
Views
Prob. 4, Sec. 27, in Munkres' TOPOLOGY, 2nd ed: Any connected metric space having more than one point is uncountable
Published on
29 Mar 2026 - 4:44
#general-topology
#analysis
#proof-verification
#metric-spaces
#connectedness
1.2k
Views
Lusin's Theorem - Proof Verification (Folland Chap 2, Exercise 44)
Published on
27 Mar 2026 - 3:58
#real-analysis
#proof-verification
#lebesgue-integral
49
Views
Find variance and expectation of $(n+1)X_{(1)}$
Published on
03 Oct 2018 - 14:58
#probability-theory
#statistics
#proof-verification
88
Views
How to proof $A \times (B - C) \subseteq (A \times B) - (A \times C)$
Published on
03 Oct 2018 - 15:22
#elementary-set-theory
#proof-verification
421
Views
example to show that an increasing union of finitely generated submodules of some module need not be finitely generated
Published on
11 Apr 2026 - 4:21
#abstract-algebra
#proof-verification
#modules
108
Views
$R$ is a unital commutative ring, $M$ and $N$ are $R$-modules. If $f:M \to N$ is $R$-linear, then is it true that $M= \ker(f) \oplus \text{im}(f)$?
Published on
28 Mar 2026 - 20:08
#abstract-algebra
#proof-verification
#modules
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