You probably hardly pay any attention to it, as it is natural to us. You are doing it right now and you are very talented at it. You also do it when you talk on the phone. When you hang out with your ...

We prove several cases of the following theorem: Every free group word which is not a proper power can represent every permutation of an infinite set. The remaining cases will be proved in a ...

The most famous four-letter word is also the most prolific. Don’t believe me? Then check out all 449 pages of editor Jesse Sheidlower’s fourth edition of “The F-Word,” a historical dictionary that is ...