<!-- iso-amsc.ent (initially distributed with DocBook XML DTD V4.1.1beta1) --> <!-- Derived from the corresponding ISO 8879 standard entity set and the Unicode character mappings provided by Sebastian Rahtz --> <!ENTITY rceil "&#x2309;"> <!-- RIGHT CEILING --> <!ENTITY rfloor "&#x230B;"> <!-- RIGHT FLOOR --> <!ENTITY rpargt "&#xE291;"> <!-- --> <!ENTITY urcorn "&#x231D;"> <!-- TOP RIGHT CORNER --> <!ENTITY drcorn "&#x231F;"> <!-- BOTTOM RIGHT CORNER --> <!ENTITY lceil "&#x2308;"> <!-- LEFT CEILING --> <!ENTITY lfloor "&#x230A;"> <!-- LEFT FLOOR --> <!-- lpargt Unknown unicode character --> <!ENTITY ulcorn "&#x231C;"> <!-- TOP LEFT CORNER --> <!ENTITY dlcorn "&#x231E;"> <!-- BOTTOM LEFT CORNER -->