Discrete Mathematics: An Open Introduction
A free, open-licensed college textbook on discrete math with online reading, PDF download, exercises and interactive examples covering counting, logic, graphs and proofs.
No account needed · sign in to keep your taste everywhere
More like this
Pages that share this page's themes. Or browse all of Education.
A Gentle Introduction to the Art of Mathematics
A free, open-source textbook introducing the foundations of mathematics, including logic, sets, functions and proofs, wr…
How to Study Mathematics
A university professor's essay of practical strategies for studying college math, covering definitions, theorems, proofs…
Lean Game Server
A home for interactive Lean games, including the Natural Number Game, where you learn to prove theorems by solving level…
Go Geometry
A long-running archive of hundreds of classical and original geometry problems with diagrams, aimed at solvers who enjoy…
Incomplete Open Cubes Revisited
An interactive extension of Sol LeWitt's Incomplete Open Cubes that lets you browse all 4,094 variations of a cube with…
Spectacles in the Roman World
A free open textbook collecting ancient writings on Roman spectacles - gladiators, chariot races, theatres and beast hun…
Stumble onto more like this
One click takes you to a page you didn't know you were looking for. Rate it and the next one lands closer to your taste.
Add to Browser — it's freeWorks in Chrome, Edge and Brave. No account needed.