The constants that can be considered free (resp., that have to be considered non-free) in this proof tree.
The fully simplified closing constraint
true
if the sets of free constants have reached a fixed point
true
if the sets of free constants have reached a fixed point
true
if there are chances that the
closingConstraint
of this tree changes by applying rules
to any goal
true
if there are chances that the
closingConstraint
of this tree changes by applying rules
to any goal
true
if it is possible to apply rules to any goal in this
tree
true
if it is possible to apply rules to any goal in this
tree
the vocabulary available at a certain node in the proof
(Since version ) see corresponding Javadoc for more information.