The constants that can be considered free (resp., that have to be considered non-free) in this proof tree.
The constants that can be considered free (resp., that have to be considered non-free) in this proof tree.
The fully simplified closing constraint
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
Given a new constant freedom for this proof tree, derive the corresponding freedom for the direct subtree.
Given a new constant freedom for this proof tree, derive the corresponding freedom for the direct subtree.
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
Replace the subtree and the constant freedom status with new values.
Replace the subtree and the constant freedom status with new values.
the vocabulary available at a certain node in the proof
the vocabulary available at a certain node in the proof
(Since version ) see corresponding Javadoc for more information.
ProofTreeOneChild
that strengthens the closing constraint of itssubtree
by conjoining a formula