A lattice $(X,\le)$ is twisted self-dual iff it is self-dual but there is not any self-duality $f:X\to X$ with $f\circ f=1_X$.
Is there any group with lattice of all its subgroups twisted self-dual?
A lattice $(X,\le)$ is twisted self-dual iff it is self-dual but there is not any self-duality $f:X\to X$ with $f\circ f=1_X$.
Is there any group with lattice of all its subgroups twisted self-dual?