May 5, 2013 ... Russell's Paradox. Bust_Of_Bertrand_Russell-Red_Lion_Square-London. Photo
credit: Lonpicman. At the turn of the 20th century, a lot people were entranced by
a new branch of math called Set Theory (which we'll cover a bit later in this list).
Basically, a set is a collection of objects. The thinking of the time ...