 slot to read and
write slot values. <name>-p is a type predicate.</p>
<p>Popular DEFSTRUCT options (see manual for others):</p>
<p>(:CONSTRUCTOR Name)
(:PREDICATE Name)
Specify the name for the constructor or predicate.</p>
<p>(:CONSTRUCTOR Name Lambda-List)
Specify the name and arguments for a BOA constructor
(which is more efficient when keyword syntax isn’t necessary.)</p>
<p>(:INCLUDE Supertype Slot-Spec*)
Make this type a subtype of the structure type Supertype. The optional
Slot-Specs override inhe