Fix markup and punctuation
diff --git a/Doc/lib/libsets.tex b/Doc/lib/libsets.tex
index 865a9a1..5f199a0 100644
--- a/Doc/lib/libsets.tex
+++ b/Doc/lib/libsets.tex
@@ -33,7 +33,7 @@
The set classes are implemented using dictionaries. As a result, sets
cannot contain mutable elements such as lists or dictionaries.
However, they can contain immutable collections such as tuples or
-instances of \class(ImmutableSet). For convenience in implementing
+instances of \class{ImmutableSet}. For convenience in implementing
sets of sets, inner sets are automatically converted to immutable
form, for example, \code{Set([Set(['dog'])])} is transformed to
\code{Set([ImmutableSet(['dog'])])}.
@@ -140,8 +140,8 @@
\lineii{\var{s}.remove(\var{x})}
{Remove element \var{x} from set \var{s}}
\lineii{\var{s}.discard(\var{x})}
- {Removes element \var{x} from set \var{s} like \var{s}.remove(\var{x})
- but does not raise a KeyError if \var{x} is not in \var{s}}
+ {Removes element \var{x} from set \var{s}. Like \var{s}.remove(\var{x})
+ but does not raise KeyError if \var{x} is not in \var{s}}
\lineii{\var{s}.pop()}
{Remove and return an element from \var{s}; no guarantee is
made about which element is removed}
@@ -212,6 +212,6 @@
The two mechanisms for adding hashability are normally invisible to the
user; however, a conflict can arise in a multi-threaded environment
-where one thread is updating a Set while another has temporarily wrapped it
+where one thread is updating a set while another has temporarily wrapped it
in \class{_TemporarilyImmutableSet}. In other words, sets of mutable sets
are not thread-safe.