Learners are Almost Free Compact Closed
arXiv:2509.20930 · doi:10.4204/EPTCS.429.3
Abstract
The category of learners has a pleasant symmetric formulation when the morphisms are considered up to a coarser equivalence than the one originally described in the paper "Backprop as Functor". A quotient of this modified category gives a new construction of the free compact closed category on a symmetric monoidal category.
In Proceedings ACT 2024, arXiv:2509.18357