an class="RktSym"><a href="file:///Users/jesse/Dropbox/sources/json-pointer/scribblings/json-pointer.html#%28def._%28%28lib._json-pointer%2Fmain..rkt%29._json-pointer~3f%29%29" class="RktValDef RktValLink" data-pltdoc="x">json-pointer?</a></span></span><span class="hspace">&nbsp;</span><span class="RktVar">x</span><span class="RktPn">)</span><span class="hspace">&nbsp;</span>&rarr;<span class="hspace">&nbsp;</span><span class="RktSym"><span class="badlink"><span class="RktValLink">boolean?</span></span></sp