static L<Web> indexedWebs(Symbol s) {
  ret ai_withoutInvalidWebs(nodesToWebs(indexedNodes_withInvalids(s)));
}

ifclass AI_SubSpace
static L<Web> indexedWebs(AI_SubSpace ss, Symbol s) {
  ret ai_withoutInvalidWebs(nodesToWebs(indexedNodes_withInvalids(ss, s)));
}
endif