activity
20152021
most citedFirst-Order Logic with Isomorphism

6 citations · 13 across the 4 of their papers we have counts for

collaborators

6 papers

math.CT2021

The Univalence Principle

Benedikt Ahrens, Paige Randall North, Michael Shulman +1

The Univalence Principle is the statement that equivalent mathematical structures are indistinguishable. We prove a general version of this principle that applies to all set-based,…

math.LO2020★ 6 cited

A Higher Structure Identity Principle

Benedikt Ahrens, Paige Randall North, Michael Shulman +1

The ordinary Structure Identity Principle states that any property of set-level structures (e.g., posets, groups, rings, fields) definable in Univalent Foundations is invariant und…

math.LO2017★ 1 cited

Finite Inverse Categories as Signatures

Dimitris Tsementzis, Matthew Weaver

We define a simple dependent type theory and prove that its well-formed types correspond exactly to finite inverse categories.

math.LO2017

A Higher Structure Identity Principle

Dimitris Tsementzis

We prove a Structure Identity Principle for theories defined on types of -level 3 by defining a general notion of saturation for a large class of structures definable in the Uni…

math.LO2016★ 6 cited

First-Order Logic with Isomorphism

Dimitris Tsementzis

The Univalent Foundations requires a logic that allows us to define structures on homotopy types, similar to how first-order logic with equality () allows us to defin…

math.LO2015

A Syntactic Characterization of Morita Equivalence

Dimitris Tsementzis

We characterize Morita equivalence of theories in the sense of Johnstone in terms of a new syntactic notion of a common definitional extension developed by Barrett and Halvorson fo…