dProgramAspifOpt is defined, the symbolicASPRules added to the rules obtained by parsing the string in backgroundProgramAspifOpt</p></dd><dt class="param">backgroundProgramAspifOpt</dt><dd class="cmt"><p>Aspif format with optional costs and parameter specs</p></dd></dl></div></li></ol></div><div class="values members"><h3>Value Members</h3><ol><li class="indented0 " name="scala.AnyRef#!=" group="Ungrouped" fullComment="yes" data-isabs="false" visbl="pub"><a id="!=(x$1:Any):Boolean"></a><a id="!=(Any):Boolea