proper-or-empty-list?
-- vonuvoli
Definition predicate
;
Procedure variants:
((null |1...|) -> (true))
((list-proper |1...|) -> (true))
list-proper
;...
-- at least one time;true
;((list-dotted |1...|) -> (false))
list-dotted
;...
-- at least one time;false
;((list-circular |1...|) -> (false))
list-circular
;...
-- at least one time;false
;((any |1...|) -> (false))
vs:lists
-- (vonuvoli pairs)
;vs:base
-- (vonuvoli base)
;list?
;null
;true
;list-proper
;list-dotted
;false
;list-circular
;any
;