λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
{λ[x:nat].λ[y:nat].λ[u:nat].λ[v:nat].λ[du:{(u).(y).(x)}.diffprop].λ[dv:{(v).(y).(x)}.diffprop]}.<{(v).(u)}.is>.{({(dv).(du).(x).({(v).(y)}.pl).({(u).(y)}.pl).(nat)}.tris1).(v).(u).(y)}.satz8a Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100