Issue 3: Structured versus Decorated Cospans

John C. Baez, Kenny Courser, and Christina Vasilakopoulou

abstract | pdf

Issue 2: Coherence for adjunctions in a 3-category via string diagrams

Manuel Ara煤jo

abstract | pdf

Issue 1: Lambek pregroups are Frobenius spiders in preorders

Dusko Pavlovic

abstract | pdf