λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
{λ[a:Prop].λ[ksi:Set].λ[x:ksi].λ[y:ksi].λ[a1:a].λ[x1:ksi].λ[y1:ksi].λ[px1:{(x1).(y).(x).(ksi).(a)}.prop1].λ[py1:{(y1).(y).(x).(ksi).(a)}.prop1]}.<{({(x).(x1).(ksi)}.is).(a)}.imp>.{(px1).({({(y).(x1).(ksi)}.is).((a).not)}.imp).({({(x).(x1).(ksi)}.is).(a)}.imp)}.ande1 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100