Enestrom-Kakeya Theorem
96592
Showing that the roots of a polynomial with descending positive coefficients lie in the unit disc.
17159
Proof of Closest Point Theorem in Hilbert Space
22842
The Interpretation of $|\psi|^2$ and the No-Clone Theorem
136694
Probabilistic Proof of Kraft-Mcmillan Inequality
150385
The use of the Axiom of Choice in this proof of the sequence lemma
128975
Behavior of $\|f\|_p$ when $p$ is near the endpoint of $I$
6088
Theorem of Arzelà-Ascoli
102740
What are some important applications of the Erdős-Szekeres Theorem?
36139
Size of a natural transformation and the Yoneda Lemma
137232
Bounds for the Harmonic k-th partial sum.
123555
Proving that if $ab=e$ then $ba=e$
97800
Exterior power "commutes" with direct sum
61810
An application of Borel-Caratheodory theorem
86308
Yoneda-Lemma as generalization of Cayley`s theorem?
83136
Positive Mass Theorem
121271
Stirling's Approximation Proof
68172
Erdős-Straus conjecture