Zulip Chat Archive

Stream: general

Topic: Deduction rules of the type theory of Lean


Mario Weitzer (Mar 21 2023 at 12:43):

Is there a list of the exact formal deduction rules of the type theory used in Lean 3 and/or Lean 4 (i.e. in the format “a list of judgements (premises), horizontal line, judgement (conclusion)”)? I know it’s something like the calculus of constructions with universes and inductive types but what exactly? I checked all the resources and documentation I could find but there seems to be no succinct formal summary of the type theoretic foundation within any of them.

Johan Commelin (Mar 21 2023 at 12:45):

See #leantt

Mario Weitzer (Mar 21 2023 at 12:46):

Perfect, thank you very much!


Last updated: Dec 20 2023 at 11:08 UTC