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15
Math.TechQA.Club
2018-08-16 20:25:29
72
Views
Help understanding this proof that $J$ is closed
Published on
16 Aug 2018 - 20:25
#general-topology
#metric-spaces
#proof-explanation
471
Views
Deriving the Cubic Formula
Published on
25 Mar 2026 - 7:38
#complex-numbers
#proof-explanation
#cubics
498
Views
Number Systems - Proof
Published on
31 Mar 2026 - 18:17
#elementary-number-theory
#proof-explanation
#number-systems
83
Views
Question about Proof that $r + x \in \mathbb{I}$
Published on
27 Mar 2026 - 22:52
#real-analysis
#proof-explanation
#irrational-numbers
2.1k
Views
$E$ is a nonempty subset of an ordered set. If $\alpha$ is a lower bound of $E$ and $\beta$ is an upper bound, then $\alpha \leq \beta$.
Published on
26 Mar 2026 - 4:36
#real-analysis
#proof-explanation
#supremum-and-infimum
102
Views
Finding the correct expression for a square-wave wavefunction with time dependence
Published on
25 Mar 2026 - 5:59
#proof-explanation
#mathematical-physics
#quantum-mechanics
#wave-equation
282
Views
A Hilbert-style proof that $\Gamma \vdash A \Rightarrow \Gamma \vdash B \Longleftrightarrow \Gamma \vdash A \to B$
Published on
22 Mar 2026 - 22:24
#proof-explanation
#propositional-calculus
#hilbert-calculus
104
Views
Proof Understanding : Complex Holomorphic function
Published on
26 Mar 2026 - 6:17
#complex-analysis
#proof-explanation
#holomorphic-functions
345
Views
Derivation of formula to calculate the angle of inclination
Published on
19 Aug 2018 - 18:42
#linear-algebra
#geometry
#proof-explanation
195
Views
Integrating the geometric series
Published on
27 Mar 2026 - 23:14
#complex-analysis
#power-series
#proof-explanation
5.6k
Views
Proof of Cauchy's Theorem for abelian groups
Published on
25 Mar 2026 - 20:10
#abstract-algebra
#group-theory
#finite-groups
#proof-explanation
#abelian-groups
1.1k
Views
Conditions under which $az+b\overline{z}+c=0$ in one complex unknown has one solution
Published on
31 Mar 2026 - 22:32
#complex-analysis
#complex-numbers
#proof-explanation
452
Views
Need help understanding the derivation of Hydrostatic Equilibrium in a star
Published on
28 Mar 2026 - 0:48
#proof-explanation
#physics
1.1k
Views
If $\lim_{n \to \infty} \frac{x_{n+1}}{x_n} = a > 0$, prove that $\lim_{n \to \infty} \sqrt[n]{x_n} = a$
Published on
20 Aug 2018 - 12:33
#real-analysis
#sequences-and-series
#limits
#convergence-divergence
#proof-explanation
123
Views
Proof explanation: Prove that $\Vert f(b)-f(a)-f'(a)(b-a) \Vert\leq \sup_{x\in [a,b]} \Vert f''(x)\Vert\Vert b-a\Vert^2$
Published on
26 Mar 2026 - 15:16
#real-analysis
#multivariable-calculus
#derivatives
#proof-explanation
#alternative-proof
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