John R. Isbell
... that John R. Isbell was the primary contributor to the mathematical theory of uniform spaces?
... that <b id="mwEZ8"><a href="./John_R._Isbell" id="mwEaA" rel="mw:WikiLink" title="John R. Isbell">John R. Isbell</a></b> was the primary contributor to the mathematical theory of <a href="./Uniform_space" id="mwEaE" rel="mw:WikiLink" title="Uniform space">uniform spaces</a>?