λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[x0:rat].λ[nx0:(x0).natrt].λ[y0:rat].λ[ny0:(y0).natrt].λ[m:{(y0).(x0)}.more].λ[z:nat].λ[d:{(z).({(ny0).(y0)}.nofrt).({(nx0).(x0)}.nofrt)}.diffprop]}.<{({({((z).natrti).((z).rtofn)}.nofrt).({(ny0).(y0)}.nofrt)}.pl).({(nx0).(x0)}.nofrt)}.is>.{({((z).isnrt1).({(ny0).(y0)}.nofrt).({((z).natrti).((z).rtofn)}.nofrt).(z)}.ispl2).(d).({({((z).natrti).((z).rtofn)}.nofrt).({(ny0).(y0)}.nofrt)}.pl).({(z).({(ny0).(y0)}.nofrt)}.pl).({(nx0).(x0)}.nofrt).(nat)}.tris 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")