New posts in Discrete Mathematics

Integer solutions of $2a+2b-ab\gt 0$

Why is $ \frac{5}{64}((161+72\sqrt{5})^{-n}+(161+72\sqrt{5})^{n}-2)$ always a perfect square?

For what value of $m$ the is sum $\sum_{i = 0}^{m} {10 \choose i}{20 \choose m - i}$ where ${p\choose q} = 0$, if $p<q$, a maximum

Arrangements of BANANAS where the A's are separated

Mathematical Explanation of the Difference between SQL Joins: Inner, Outer, Left, Right

Fibonacci recurrence relation - Principle of Mathematical Induction

Does the fraction of distinct substrings in prefixes of the Thue–Morse sequence of length $2^n$ tend to $73/96$?

Axiom to prove $ \sqrt2 $ is irrational by contradiction.

Proof that you can win at least half the money.

Four bridge hands with no two people having 8 or more cards of the same suit between them.