λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
λ[x:nat].<{(λ[z:Π[y:nat].nat].{((λ[y:nat].{(((y).z).suc).(((y).suc).z)}.is).all).({((x).suc).((1).z)}.is)}.and).(Π[y:nat].nat)}.one>.{((x).bb).((x).aa).(λ[z:Π[y:nat].nat].{(z).(x)}.prop2).(Π[y:nat].nat)}.onei Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100