Def nth_tl(n;as) == if n0 as else nth_tl(n-1;tl(as)) fi  (recursive)

is mentioned by

Thm* r:, L:Top List. ||nth_tl(r;L)|| = if r<||L|| ||L||-r else 0 fi

[general_length_nth_tl]

In prior sections: list 1 mb list 1

Try larger context: EventSystems IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html