src/HOL/NumberTheory/EvenOdd.thy
2004-01-09 paulson 2004-01-09 Defining the type class "ringpower" and deleting superseded theorems for types nat, int, real, hypreal
2003-03-20 paulson 2003-03-20 Gauss's law of quadratic reciprocity by Avigad, Gray and Kramer