removed junk (cf. 667961fa6a60);
--- a/src/HOL/NSA/Filter.thy Tue May 28 10:18:43 2013 +0200
+++ b/src/HOL/NSA/Filter.thy Tue May 28 13:14:31 2013 +0200
@@ -264,7 +264,7 @@
text "In this section we prove that superfrechet is closed
with respect to unions of non-empty chains. We must show
- 1) Union of a chain is afind_theorems name: Union_chain_UNIV filter,
+ 1) Union of a chain is a filter,
2) Union of a chain contains frechet.
Number 2 is trivial, but 1 requires us to prove all the filter rules."