Project-declaredLean 4.33.0-rc1
Close open Rec to subst
Cslib.LambdaCalculus.LocallyNameless.Untyped.Term.close_openRec_to_subst
Plain-language statement
Closing then opening is equivalent to substitution.
computer sciencecomputabilityprogram semantics
Source project: Lean Computer Science Library
Person-level attribution pending.