λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
λ[x:nat].<{({(x).(1)}.pl).((x).suc)}.is>.{((x).satz4c).((x).suc).({(x).(1)}.pl).(nat)}.symis Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100