  CDATA "&amp;#8629;" -- downwards arrow with corner leftwards
                                     = carriage return, U+21B5 NEW --&gt;
&lt;!ENTITY lArr     CDATA "&amp;#8656;" -- leftwards double arrow, U+21D0 ISOtech --&gt;
&lt;!-- ISO 10646 does not say that lArr is the same as the 'is implied by' arrow
    but also does not have any other character for that function. So ? lArr can
    be used for 'is implied by' as ISOtech suggests --&gt;
&lt;!ENTITY uArr     CDATA "&amp;#8657;" -- upwards double arrow