static <A> int lFilter(Iterable<A> c, IF1<A, Bool> pred) {
  ret nfilter(c, pred);
}



static <A> int lFilter(IF1<A, Bool> pred, Iterable<A> c) {
  ret nfilter(pred, c);
}



static int lFilter(Iterable c, O pred) {
  ret nfilter(c, pred);
}



static int lFilter(O pred, Iterable c) {
  ret nfilter(pred, c);
}