Symmetric embeddings of free lattices into each other

Gábor Czédli, Gergő Gyenizse, Ádám Kunos

By a 1941 result of Ph. M. Whitman, the free lattice FL(3) on three generators includes a sublattice $S$ that is isomorphic to the lattice FL($\omega$)=FL(${\aleph }_0$) generated freely b…