λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
{λ[y:nat].λ[l:{(y).(1)}.less].λ[f:Π[t:(1).1to].(y).1to].λ[n:({({(f).(l).(y)}.1y).((1o).f).((y).1to)}.is).not].λ[u:(1).1to]}.<({({(f).(l).(y)}.1y).((u).f).((y).1to)}.is).not>.{({(u).(f).(l).(y)}.t4).(n).((u).f).({(f).(l).(y)}.1y).((1o).f).((y).1to)}.th2 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100