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]}.<Prop>.{(λ[f:Π[t:(x).1to].(y).1to].{(f).((y).1to).((x).1to)}.bijective).(Π[t:(x).1to].(y).1to)}.some Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100