Something Old, Something New, Something Borrowed, ...
F.E.J. Linton • Wesleyan Univ. Math/CS Emeritus
F.E.J. Linton • Wesleyan Univ. Math/CS Emeritus
Distinct reals x, y in
Xελ must lie at least 2ε
apart: |x − y| > 2ε.
For if instead
0 < |x − y| < 2ε ,
then