%set(name,and
)%set(syntax,%%and('exp1[\,'exp2[\,...]])
)%set(description,Expands to %%null%% if any of the given expressions expand to %%null%%. 
Otherwise\, T is returned.

Typically\, the exp (expression) parameters should be quoted. This allows %%and()
to use short-circuit semantics; that is\, evaluation will stop after the first
null exp is encountered\, since it takes only one null exp to return %%null%%.
)%set(author,
)%set(example,
)%set(seealso,
)
	 and  
 