1. In lattice theory , the graph of a drawings of graphs of lattices. 2. See the references in the entries order theory and lattice theory . 3. A third, equivalent way of describing the same class of objects uses lattice theory . 4. The method uses lattice theory and introduces the notions of quasi-supermodularity and the single-crossing condition. 5. It is often said that lattice theory draws on both order theory and universal algebra. 6. Schr�der also made original contributions to algebra, set theory, lattice theory , ordered sets and ordinal numbers. 7. For some years, she and colleagues explored lattice theory as the underlying formal structure of such thesauri. 8. Is the thinking involved simply that of ring theory, lattice theory or category theory in a different guise? 9. It corrects the starting point of lattice theory during the development of formal logic in the 19th century. 10. Its mathematical basis, however, was already created in the 1930s by Garrett Birkhoff as part of general lattice theory .
