Attacking a slew of calculus problems the night before a quiz is never my idea of a good time, but on a recent Saturday night, one problem in particular drew my ire — then, the more I mulled over it, ...

Algebraic structures are fundamental mathematical entities defined by sets equipped with operations that satisfy specific axioms, such as groups, rings, and fields. Function spaces, by contrast, are ...

Proceedings of the American Mathematical Society, Vol. 102, No. 3 (Mar., 1988), pp. 473-479 (7 pages) We present criteria for irrationality of limits of convergent sequences of rational numbers, ...