While referring my notes, I saw an example where inclusion-exclusion principle was used. Why is 1/e coming answer to this question?
98326
Why is the Derangement Probability so Close to $\frac{1}{e}$?
44160
Set theory: difference between belong/contained and includes/subset?
146457
including but not limited to - explain this sentence
22712
Need help regarding String Derangements using Inclusion/Exclusion
65486
Contraposition and law of excluded middle
132264
Is there a (basic) way to understand why a limit cannot be brought inside of a sum, in certain situations?
48332
Why does the minimum value of $x^x$ equal $1/e$?
38719
In this case, why must $p$ divide $|G/N|$?
28350
$\lambda=\frac{2h}{p}$ instead of $\lambda=\frac{h}{p}$?
88958
Violation of Pauli exclusion principle
72400
Why don't I get $e$ when I solve $\lim_{n\to \infty}(1 + \frac{1}{n})^n$?
115139
Use my example to explain why loop diagram will not occur in classical equation of motion?
145025
Why is the partial trace of this subsystem equal to this?
586
What exactly are we doing when we set $c=1$?
67410
Why does this expected value simplify as shown?
100870
In De Broglie's Explanation for Bohr's Quantization Condition, why do we not use 2πr = n λ/2, why do we use 2πr = n λ?
136844
Mathematical induction question: why can we "assume $P(k)$ holds"?