Can some explain where the first inequality is derived from?
114982
How do I get that $|\int_a^b f| \le \int_a^b |f|$?
120093
Proof of inequality $2(\sqrt{n+1}-\sqrt{n}) < \frac{1}{\sqrt{n}} < 2(\sqrt{n} - \sqrt{n-1})$ using induction
88687
Proof of the inequality $||a+b|^p - |a|^p| \leq \epsilon |a|^p + C_{\epsilon} |b|^p$
107967
Significance of assumption in competition inequality questions
116685
Reciprocal of Holder's inequality
33543
is "y1 < x < y2" an inequality or inequalities?
132595
$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{\operatorname{Tr}[\rho M]}{\operatorname{Tr}[\sigma M]}$ satisfies Data Processing Inequality
71497
An inequality from Littlewood's Miscellany
104125
How prove this inequality??
58969
A proof for the inequality $\sum_{i=0}^{t-2}{\frac{1}{t+3i}} \leq \frac{1}{2} $ for all $t \geq 2$
156669
Trying to prove a simple (?) inequality
130049
Converse of Jensen's inequality
123478
Generalized Poincaré Inequality on H1 proof.
20040
shorter proof of generalized mediant inequality?
35867
Squaring sides of an inequality
78120
Proof of Bernoulli's inequality
107601
Use of inequality $1 - \cos (x) \leq x^2 /2$