Homomorphisms and principal congruences of bounded lattices. II. Sketching the proof for sublattices
G. Grätzer · arXiv (Cornell University) · 2022
A recent result of G. Czédli relates the ordered set of principal congruences of a bounded lattice $L$ with the ordered set of principal congruences of a~bounded sublattice $K$ of $L$. In this note, I sketch a new proof.