This might also be of interest. I have written for example a docstring
"Return True if the lattice is sectionally complemented, and False
otherwise.
A lattice is sectionally complemented if all intervals from the bottom
element interpreted as sublattices are complemented lattices."
However, in the index I use
is_sectionally_complemented() | Return True if every interval from the bottom
is complemented.
is_cosectionally_complemented() | Return True if every interval to the top is
complemented.
etc, when possible. I think it has slightly more information, as
is_sectionally_complemented() -> Return True if the lattice is sectionally
complemented
sounds informationless explanation. What others think about this?
(Of course this only works when there a short explanation is possible;
more often it is not.)
--
Jori Mäntysalo