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@@ -338,8 +338,9 @@ according to the left-hand-side. (We do not define $\Int$ because the
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reader already knows what an integer is.) We make the simplifying
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design decision that all of the languages in this book only handle
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machine-representable integers (those representable with 64-bits,
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-i.e., the range $-2^{63}$ to $2^{63}$) which corresponds to the
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-\texttt{fixnum} datatype in Racket. A name such as $\Exp$ that is
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+i.e., the range $-2^{63}$ to $2^{63}-1$)
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+ which is similar to the \texttt{fixnum} datatype in Racket.
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+A name such as $\Exp$ that is
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defined by the grammar rules is a \emph{non-terminal}.
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The second grammar rule is the \texttt{read} operation that receives
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Ryan Newton