University of South Carolinapeople.math.sc.edu/girardi/m142/hmwk/VPR8ed10-4s.pdfTheorem (Theorem D...
5
University of South Carolinapeople.math.sc.edu/girardi/m142/hmwk/VPR8ed10-4s.pdfTheorem (Theorem D of Section 10.1), lim Bn exists. The rationality of is a famous unsolved problem