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[z:nat].λ[u:nat].λ[i:{(y).(x)}.is].λ[l:{(u).(z)}.less]}.<{({(u).(y)}.pl).({(z).(x)}.pl)}.less>.{({(l).(x).(u).(z)}.satz19f).({(i).(u).(y).(x)}.ispl1).({(z).(x)}.pl).({(u).(y)}.pl).({(u).(x)}.pl)}.isless2 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100