> "The physicist writes, 'There is a white horse in Iowa.' The mathematician writes, 'There exists, somewhere in the Midwest, a horse, white on top." I'm neith

> "The physicist writes, 'There is a white horse in Iowa.' The mathematician writes, 'There exists, somewhere in the Midwest, a horse, white on top." I'm neither a mathematician nor physicist...but this seems like a category error to me. What the heck does a mathematician care about horses?