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).prop4].λ[f:Π[y:nat].nat].λ[pf:{(f).(x)}.prop2].λ[y:nat]}.<{({((x).suc).((y).{(pf).(f).(p).(x)}.g)}.pl).(((y).suc).{(pf).(f).(p).(x)}.g)}.is>.{({((x).suc).(y).((y).f)}.asspl2).({({(y).(pf).(f).(p).(x)}.t20).((y).f).({((x).suc).(y)}.pl).({((y).suc).(x)}.pl)}.ispl2).({(y).(pf).(f).(p).(x)}.t19).({((x).suc).((y).{(pf).(f).(p).(x)}.g)}.pl).({({((x).suc).(y)}.pl).((y).f)}.pl).({({((y).suc).(x)}.pl).((y).f)}.pl).(((y).suc).{(pf).(f).(p).(x)}.g).(nat)}.tr3is 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")