cancelli noun: A lattice is an abstract structure studied in the mathematical subdisciplines of order theory and abstract algebra. It consists of a partially ordered set in which every two elements have a unique supremum (also called a least upper bound or join) and a unique infimum (also called a greatest lower bound or meet).
They have a rhyme scheme of ABAB, CDCD, EFEF. The final two lines are a couplet and have the rhyme scheme GG. You can see the pattern with the last words of each line in the Shakespearean sonnet example noted above: A - sun.
