foundations of mathematics. in foundations of mathematics: Foundational logic. ...1, where 0 is the empty set and 1 is the set consisting of 0 alone. Both definitions require an extralogical axiom to make them workâthe axiom of infinity, which postulates the existence of an infinite set.
Extend your Hershey getaway with an exciting trip to our favorite family attractions in nearby Harrisburg, Gettysburg, and Lancaster! Harrisburg is home to the State Capitol Building, award-winning state museum, and the National Civil War Museum. For information, call 1-800-995-0969 or 1-800-VISIT PA (847-4872).
Hershey's Chocolate World-if your Pennsylvania romantic getaway takes you to Harrisburg, PA, give your tastebuds a fun treat 15 miles east at this amusement park of everything chocolate! In fact, the charming town of Hershey is a great destination for a weekend getaway.