--- doc/src/sgml/ref/let.sgml.orig	2021-01-08 18:09:52.757482768 +0100
+++ doc/src/sgml/ref/let.sgml	2021-01-08 18:13:23.071342113 +0100
@@ -44,16 +44,16 @@
     <term><literal>schema_variable</literal></term>
     <listitem>
      <para>
-      The name of schema variable.
+      The name of the schema variable.
      </para>
     </listitem>
    </varlistentry>
 
    <varlistentry>
-    <term><literal>sql expression</literal></term>
+    <term><literal>sql_expression</literal></term>
     <listitem>
      <para>
-      An SQL expression, whose result is casted into the schema variable's type.
+      An SQL expression. The result is cast into the schema variable's type.
      </para>
     </listitem>
    </varlistentry>
@@ -62,7 +62,7 @@
     <term><literal>DEFAULT</literal></term>
     <listitem>
      <para>
-      Reset the schema variable to its default value, if it is defined.
+      Reset the schema variable to its default value, if that is defined.
       If no explicit default value has been assigned, the schema variable
       is set to NULL.
      </para>