It is part of the romance of mathematics that mathematicians
can work anywhere, can flaunt their eccentricities, and yet create
a universe of definitions, axioms, and theorems often with far-reaching
So it was with the mathematicians -- Banach, Ulam, Saks, Mazur, and others
-- of the Scottish Cafe in Lvov.
They did great mathematics in the evenings
over pastries and coffee, wrote problems
on the left side of a book's page and solutions on the right.
When the Second World War swept over their
city, many were murdered, but the book survived,
hidden near a soccer goal post.
Case captures the spirit of the time and
these personalities, making the book a delightful read.