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New posts in discrete-mathematics
Which one is reflexive, symmetric and transitive
discrete-mathematics
relations
Prove that $\mathbb{|Q| = |Q\times Q|}$
discrete-mathematics
elementary-set-theory
cardinals
In how many ways you can sit $n$ men and $n$ women so that :
combinatorics
discrete-mathematics
Induction Proof $n! < n^n$ [closed]
discrete-mathematics
induction
Proof By Induction - Factorials
discrete-mathematics
Induction proof to find formula
discrete-mathematics
induction
Combinatorial proof of $\sum_{k=1}^n k^2 =\binom{n+1}{3} + \binom{n+2}{3}$
combinatorics
discrete-mathematics
Proof of Equivalence Relation $R=\{(a,b)\in\Bbb N^2: 5\mid (2a+3b)\}$
discrete-mathematics
elementary-set-theory
equivalence-relations
For all integers a, b, c, if a | b and b | c then a | c. [duplicate]
discrete-mathematics
divisibility
Induction problem: a formula for $\sum_{i=1}^n i(i+1)$
discrete-mathematics
summation
induction
Prove that for all $n\geqslant 1$ we have $F_n<{\left(\frac 74\right)}^n$. [closed]
discrete-mathematics
inequality
fibonacci-numbers
Use Mathematical Induction to prove that $\frac{1}{1 \cdot 2} + \frac{1}{2 \cdot 3} +...+\frac{1}{n(n+1)}=1-\frac{1}{n+1}$ [duplicate]
discrete-mathematics
summation
induction
Recurrences for even and odd indexed of Fibonacci Numbers
combinatorics
discrete-mathematics
generating-functions
fibonacci-numbers
Random Variable - Birthday Problem
discrete-mathematics
random-variables
birthday
Prove for all integer $n > 1$ that if $n | 34$, then $n+5$ and $n^2+$9 are coprime
elementary-number-theory
discrete-mathematics
divisibility
What is the probability of these events?
probability
statistics
discrete-mathematics
Find the simple closed form of summation from $k=0$ to $N$
combinatorics
discrete-mathematics
How many functions are possible to create in this example?
combinatorics
functions
discrete-mathematics
proof-verification
relations
Counting non-isomorphic relations
combinatorics
discrete-mathematics
relations
How to determine whether two graphs are isomorphic from larger adjacency matrices
discrete-mathematics
graph-theory
graph-isomorphism
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