Articles

1. Versatile monoids and versatile categories

   • Matthew Gould
   • Craig Platt

   OriginalPaper Pages: 54 - 62

2. The spectrum of some classes of free universal algebras

   • Robert M. Vancko

   OriginalPaper Pages: 46 - 53

3. On the structure of the lattice of equational classes ℒ (τ)

   • Stanley Burris

   OriginalPaper Pages: 39 - 45

4. The category of semilattices

   • Alfred Horn
   • Naoki Kimura

   OriginalPaper Pages: 26 - 38

5. On semigroups whose proper subsemigroups have lesser power

   • Ralph McKenzie

   OriginalPaper Pages: 21 - 25

6. On elementary types of symmetric groups

   • Ralph McKenzie

   OriginalPaper Pages: 13 - 20

7. On the composition of idempotent functions

   • Robert W. Quackenbush

   OriginalPaper Pages: 7 - 12

8. Proof of a theorem on distributive type hyperidentities

   • J. Aczél

   OriginalPaper Pages: 1 - 6