Journal of Philosophical Logic, Vol. 48, No. 4 (August 2019), pp. 649-684 (36 pages) We present a new notion of game equivalence that captures basic powers of interacting players. We provide a ...

One of the basic theorems in universal algebra is Birkhoff's variety theorem: the smallest equationally axiomatizable class containing a class K of algebras coincides with the class obtained by taking ...

In this muddled offering, Acheson (The Wonder Book of Geometry), an emeritus fellow at the University of Oxford, comes up short in attempting to demonstrate the marvelous qualities of mathematics. He ...

Millions of high school and college algebra students are united in a shared agony over solving for x and y, and for those to whom the answers don't come easily, it gets worse: Most preschoolers and ...

Way back before the days of microcomputers, a few very lucky students first got their hands wet with microcomputer trainers. These simple devices used common logic chips, lights, and switches to ...