LFCS Seminar: 28 May 2021 - Oleg Kiselyov

Title: Many More Predecessors: A Representation Workout


From the outset, lambda calculus represented natural numbers through iterated application. The successor hence adds one more application, and the predecessor removes. In effect, the predecessor un-applies a term - which seemed impossible, even to Church. It took Kleene a rather oblique glance to sight a related representation of numbers, with an easier predecessor. Let us see what we can do if we look at this old problem with today’s eyes. We discern the systematic ways to derive more predecessors - smaller, faster, and sharper while keeping all teeth.

Affiliates: Tohoku University


May 28 2021 -

LFCS Seminar: 28 May 2021 - Oleg Kiselyov

Speaker: Oleg Kiselyov

Blackboard Collaborate
Invitation Only