λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[x:frac].λ[n1:nat].λ[n2:nat]}.<{({({(n2).((x).2x)}.ts).({(n1).((x).1x)}.ts)}.fr).({({(n2).(n1)}.fr).(x)}.tf).(frac)}.is>.{({(n2).(n1).(x)}.t4).({(n2).(n1).(x)}.t3).({(n2).((x).2x)}.ts).({(n1).((x).1x)}.ts).({(({(n2).(n1)}.fr).den).((x).2x)}.ts).({(({(n2).(n1)}.fr).num).((x).1x)}.ts)}.isnd 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")