Showing math.LOShow all
2 papers · 1 filter
math.LO2024
Constructive theory of ordinals
Thierry Coquand, Henri Lombardi, Stefan Neuwirth
In Chapter 3 of his Notes on constructive mathematics, Martin-L{ö}f describes recursively constructed ordinals. He gives a constructively acceptable version of Kleene's computable…
math.LO2024
An introduction to Lorenzen's "Algebraic and logistic investigations on free lattices" (1951)
Thierry Coquand, Henri Lombardi, Stefan Neuwirth
Lorenzen's ``Algebraische und logistische Untersuchungen über freie Verbände'' appeared in 1951 in The Journal of Symbolic Logic. These ``Investigations'' have immediately been r…