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]}.<{({({(z).(y)}.pl).(x)}.ts).({({(z).(x)}.ts).({(y).(x)}.ts)}.pl)}.is>.{({(z).(y).(x)}.disttp2).({({(z).(x)}.ts).({(y).(x)}.ts)}.pl).({({(z).(y)}.pl).(x)}.ts).(nat)}.symis Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100