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[m:{(y).(x)}.more].λ[u:nat].λ[du:{(u).(y).(x)}.diffprop]}.<{({({(z).(u)}.ts).({(z).(y)}.ts)}.pl).({(z).(x)}.ts)}.is>.{({(z).(u).(y)}.disttp1).({(du).(z).({(u).(y)}.pl).(x)}.ists1).({({(z).(u)}.ts).({(z).(y)}.ts)}.pl).({(z).({(u).(y)}.pl)}.ts).({(z).(x)}.ts).(nat)}.tris Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100