--- a/src/HOL/ex/Arithmetic_Series_Complex.thy Fri Mar 30 14:25:32 2012 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,17 +0,0 @@
-(* Title: HOL/ex/Arithmetic_Series_Complex.thy
- Author: Benjamin Porter, 2006
-*)
-
-
-header {* Arithmetic Series for Reals *}
-
-theory Arithmetic_Series_Complex
-imports "../RealDef"
-begin
-
-lemma arith_series_real:
- "(2::real) * (\<Sum>i\<in>{..<n}. a + of_nat i * d) =
- of_nat n * (a + (a + of_nat(n - 1)*d))"
- by (fact arith_series_general) (* FIXME: duplicate *)
-
-end