λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[x:nat].λ[p:(x).prop2].λ[y:nat].λ[l:{(y).((x).suc)}.less].λ[f:Π[t:((x).xs).1to].(y).1to].λ[b:{(f).((y).1to).(((x).xs).1to)}.bijective].λ[n:({({(l).(y).(p).(x)}.yy1).(({(l).(y).(p).(x)}.xxs).f).((y).1to)}.is).not]}.<{(({(n).(b).(f).(l).(y).(p).(x)}.m0).f).(({(l).(y).(p).(x)}.xxs).{(n).(b).(f).(l).(y).(p).(x)}.f2).((y).1to)}.is>.{({({(l).(y).(p).(x)}.xxs).(((x).xs).1to)}.refis).({(l).(y).(p).(x)}.xxs).({(l).(y).(p).(x)}.xxs).({(n).(b).(f).(l).(y).(p).(x)}.m0).(f).((y).1to).(((x).xs).1to)}.changef2 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100
![[Spacer]](http://helm.cs.unibo.it/lambdadelta/images/rainbow.png "\lambda\delta rainbow rule")
![[Generated from XML via XSL]](http://helm.cs.unibo.it/lambdadelta/images/xml_xsl2.png "Generated from XML via XSL")
![[PNG used here]](http://helm.cs.unibo.it/lambdadelta/images/PNGnow2.png "PNG used here")
![[Viewable with any browser]](http://www.anybrowser.org/campaign/bvgraphics/abtfile.png "Viewable with any browser")