v3.0.0
This release marks multiple things as final and performs some cleanup:
- mark
Term
subclasses as final - mark predefined terms as final
- mark DepthFirstVisitor as final and add slots
- remove unused
UnsafeSubstitution.free_variables
This release marks multiple things as final and performs some cleanup:
Term
subclasses as finalUnsafeSubstitution.free_variables