2 papers
math.LO2019
From type theory to setoids and back
Erik Palmgren
A model of Martin-Löf extensional type theory with universes is formalized in Agda, an interactive proof system based on Martin-Löf intensional type theory. This may be understood,…
math.LO2013
Yet another category of setoids with equality on objects
Erik Palmgren
When formalizing mathematics in (generalized predicative) constructive type theories, or more practically in proof assistants such as Coq or Agda, one is often using setoids (types…