https://doi.org/10.4169/college.math.j.48.2.82 https://www.jstor.org/stable/10.4169/college.math.j.48.2.82 We present an analog clock with five hands that illustrates ...
https://doi.org/10.4169/college.math.j.45.1.054 https://www.jstor.org/stable/10.4169/college.math.j.45.1.054 Summary We present a result of Rosenthal, which shows ...