8.1.1 - <select> and <select1>

In 8.1.1 we read, "Form controls encapsulate high-level semantics without 
sacrificing the ability to deliver real implementations. For instance, form 
controls select and select1 enable the user select one or more items from a 
set.".

Really? How do I use the abomination <select1> to select more than one item 
from a set?

If it is intended to indicate that select1 selects one and select selects 
more than one surely, at a minimum, the two elements should be re-ordered.

Andrew Watt