Volume 2 (2007), No. 2

Special issue dedicated to the memory of

Table of Contents

1. Mac Lane's Influence on His Students

W. Howard, 3-5

2. An Undergraduate's Memory of Saunders Mac Lane

W. Komornicki, 7-10

3. Memorial Talk

J.P. May, 11-12

4. A Logic of Injectivity

J. Adamek, M. Hebert and L. Sousa, 13-47

5. Normalisation for the fundamental crossed complex of a simplicial set

R. Brown and R. Sivera, 49-79

6. Diagonal fibrations are pointwise fibrations

A.M. Cegarra and J. Remedios, 81-92

7. Reparametrizations of Continuous Paths

U. Fahrenberg and M. Raussen, 93-117

8. Pseudo Algebras and Pseudo Double Categories

T. M. Fiore, 119-170

9. Categories, norms and weights

M. Grandis, 171-186

10. Third Mac Lane cohomology via categorical rings

M. Jibladze and T. Pirashvili, 187-216

11. Note on commutativity in double semigroups and two-fold monoidal categories

J. Kock, 217-228

12. Homotopy-theoretic aspects of 2-monads

S. Lack, 229-260

13. Mackey functors on compact closed categories

E. Panchadcharam and R. Street, 261-293

14. Factorization, Fibration and Torsion

J. Rosicky and W. Tholen, 295-314