e.g. -> e.g.,
diff --git a/Doc/ref/ref5.tex b/Doc/ref/ref5.tex
index d0d57ec..8624bc6 100644
--- a/Doc/ref/ref5.tex
+++ b/Doc/ref/ref5.tex
@@ -36,7 +36,7 @@
is necessary.
\end{itemize}
-Some additional rules apply for certain operators (e.g. a string left
+Some additional rules apply for certain operators (e.g., a string left
argument to the `\%' operator). Extensions can define their own
coercions.
\section{Atoms}
@@ -216,7 +216,7 @@
(In particular, converting a string adds quotes around it and converts
``funny'' characters to escape sequences that are safe to print.)
-It is illegal to attempt to convert recursive objects (e.g. lists or
+It is illegal to attempt to convert recursive objects (e.g., lists or
dictionaries that contain a reference to themselves, directly or
indirectly.)
\obindex{recursive}
@@ -248,7 +248,7 @@
\end{verbatim}
The primary must evaluate to an object of a type that supports
-attribute references, e.g. a module or a list. This object is then
+attribute references, e.g., a module or a list. This object is then
asked to produce the attribute whose name is the identifier. If this
attribute is not available, the exception
\exception{AttributeError}\exindex{AttributeError} is raised.
@@ -361,7 +361,7 @@
\subsection{Calls} \label{calls}
\index{call}
-A call calls a callable object (e.g. a function) with a possibly empty
+A call calls a callable object (e.g., a function) with a possibly empty
series of arguments:
\obindex{callable}
@@ -567,7 +567,7 @@
division of the first argument by the second. The numeric arguments
are first converted to a common type. A zero right argument raises
the \exception{ZeroDivisionError} exception. The arguments may be floating
-point numbers, e.g. \code{3.14\%0.7} equals \code{0.34} (since
+point numbers, e.g., \code{3.14\%0.7} equals \code{0.34} (since
\code{3.14} equals \code{4*0.7 + 0.34}.) The modulo operator always
yields a result with the same sign as its second operand (or zero);
the absolute value of the result is strictly smaller than the second
@@ -663,7 +663,7 @@
Comparisons yield integer values: \code{1} for true, \code{0} for false.
-Comparisons can be chained arbitrarily, e.g. \code{x < y <= z} is
+Comparisons can be chained arbitrarily, e.g., \code{x < y <= z} is
equivalent to \code{x < y and y <= z}, except that \code{y} is
evaluated only once (but in both cases \code{z} is not evaluated at all
when \code{x < y} is found to be false).
@@ -789,7 +789,7 @@
replaced by a default value if it is empty, the expression
\code{s or 'foo'} yields the desired value. Because \keyword{not} has to
invent a value anyway, it does not bother to return a value of the
-same type as its argument, so e.g. \code{not 'foo'} yields \code{0},
+same type as its argument, so e.g., \code{not 'foo'} yields \code{0},
not \code{''}.)
Lambda forms (lambda expressions) have the same syntactic position as