Syntax
where
This command deletes elements. The arguments specify a collection of
elements which are to be deleted. Any bases whose names appear in the
argument list are not deleted unless all their elements are deleted.
Wildcards may be used with this command. See §6.2 for
details of specifying collections for the definition part.
If XELEMENT: is requested to remove a specific element which it
fails to recognise, a warning is reported.
The contents of bases are always checked after elements have been
deleted, and if any bases have become redundant as a result, they are
also deleted.
When an element is deleted, and if this element is the name of a node
defined via the GRID: command for influence diagram use, then
the node is deleted, and also deleted are any arcs connecting this node
to any other node.
are the names of elements or bases.
[, 
...] 