On the one hand, logic is the study of certain mathematical properties of artificial, formal languages. It is concerned with such languages as the first or second order predicate calculus, modal logics, the lambda calculus, categorial grammars, and so forth.
Underworld is a 2003 action horror film directed by Len Wiseman about the secret history of Vampires and Lycans (an abbreviated form of lycanthrope). It is the first (chronologically, the second) installment in the Underworld series. The main plot revolves around Selene (Kate Beckinsale), a vampire Death Dealer hunting Lycans.
These include: 1  Harry Vincent, an operative whose life he saved when Vincent tried to commit suicide in the first Shadow story. 2  Moses Moe Shrevnitz, aka Shrevvy, a cab driver who doubles as his chauffeur. 3  Margo Lane, a socialite created for the radio drama and later introduced into the pulps.