2 papers
cs.LO2026
Doctrinal Semantics of Directed First-Order Logic
Andrea Laretto, Fosco Loregian, Niccolò Veltri
We present a first-order logic equipped with an "asymmetric" directed notion of equality, which can be thought of as rewrites between terms, allowing for types to be interpreted as…
math.CT2026
Di- is for Directed: First-Order Directed Type Theory via Dinaturality
Andrea Laretto, Fosco Loregian, Niccolò Veltri
We show how dinaturality plays a central role in the interpretation of directed type theory where types are interpreted as (1-)categories and directed equality is represented by $\…