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New posts in discrete-mathematics
when is $n!+10$ a perfect square?
number-theory
discrete-mathematics
factorial
square-numbers
Arrangement of Numbers
discrete-mathematics
How to prove reflexivity, symmetry and transitivity for the following relation? [closed]
discrete-mathematics
elementary-set-theory
relations
Every natural number in binary can be cut and added so that it is a power of $2$? [duplicate]
number-theory
discrete-mathematics
recreational-mathematics
How do you determine number of distinct integer solutions for an equation? [duplicate]
combinatorics
discrete-mathematics
binomial-coefficients
diophantine-equations
What is the purpose of implication in discrete mathematics?
logic
discrete-mathematics
When to use implication and when to use conjunction?
discrete-mathematics
Prove that if $A\subseteq B$, and $A$ is uncountable, then $B$ is uncountable
discrete-mathematics
elementary-set-theory
Show that if n+1 integers are choosen from set $\{1,2,3,...,2n\}$ ,then there are always two which differ by 1
combinatorics
discrete-mathematics
Expected winning of a player with highest lowest and second highest lowest grouping
probability
combinatorics
probability-theory
discrete-mathematics
expected-value
Examples of classes $\mathcal{C}$ of structures such that every finite group is isomorphic to the automorphism group of a structure in $\mathcal{C}$
abstract-algebra
group-theory
discrete-mathematics
graph-theory
Monty Hall Three-Door Puzzle
probability
discrete-mathematics
monty-hall
Coloring grid points with two colors
combinatorics
discrete-mathematics
graph-theory
contest-math
coloring
Variance of fair die roll - two in a row
probability
discrete-mathematics
variance
Arranging numbers from $1$ to $n^2$ in a $n\times n$ board
combinatorics
discrete-mathematics
contest-math
recreational-mathematics
puzzle
Is it possible to implement bitwise operators using integer arithmetic?
bitwise-operators
discrete-mathematics
compiler-optimization
Prove by induction that for $n ≥ 3, 4^{n} > 5n^{2}+ n.$
discrete-mathematics
induction
Prove that $\lfloor\lfloor x/2 \rfloor / 2 \rfloor = \lfloor x/4 \rfloor$
elementary-number-theory
discrete-mathematics
What is the difference between discrete and continuous mathematics?
discrete-mathematics
computer-science
Combinatorial proofs of the following identities
combinatorics
discrete-mathematics
combinatorial-proofs
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