λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[q:Π[t:cx].Π[u:cx].cx].λ[a:(q).assoc].λ[x:nat].λ[y:nat].λ[f:Π[t:({(y).(x)}.pl).1to].cx]}.<{(({({(f).(y).(x).(cx)}.right).(y).(q)}.smpr).({({(f).({({(y).(x)}.satz18a).({(y).(x)}.pl).(x)}.lessisi1).(x).({(y).(x)}.pl).(cx)}.left).(x).(q)}.smpr).q).({(f).({(y).(x)}.pl).(q)}.smpr)}.is>.(f).{(y).(x).(a).(q)}.t56 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")