Minor textual adjustment, and style-guide conformance (no use of "iff").
diff --git a/Doc/lib/libweakref.tex b/Doc/lib/libweakref.tex
index d88b051..4b3767e 100644
--- a/Doc/lib/libweakref.tex
+++ b/Doc/lib/libweakref.tex
@@ -47,10 +47,11 @@
the \var{object} was deleted, the call will raise
\exception{TypeError}.
- Weak references support test for equality, but not ordering. If the
- \var{object} is still alive, to references are equal if the objects
- are equal (regardless of the \var{callback}). If the \var{object}
- has been deleted, they are equal iff they are identical.
+ Weak references support tests for equality, but not ordering. If
+ the \var{object} is still alive, two references are equal if the
+ objects are equal (regardless of the \var{callback}). If
+ \var{object} has been deleted, they are equal only if the references
+ being compared are the same reference object.
\end{funcdesc}
\begin{funcdesc}{proxy}{object\optional{, callback}}