λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[ksi:cut].λ[eta:cut].λ[zeta:cut].λ[l:{(eta).(ksi)}.less].λ[k:{(zeta).(eta)}.less].λ[x0:rat].λ[ux:{(x0).(ksi)}.urt].λ[lx:{(x0).(eta)}.lrt].λ[y0:rat].λ[uy:{(y0).(eta)}.urt].λ[ly:{(y0).(zeta)}.lrt]}.<{({(y0).(zeta)}.lrt).({(y0).(ksi)}.urt)}.and>.{(ly).({(ly).(uy).(y0).(lx).(ux).(x0).(k).(l).(zeta).(eta).(ksi)}.t2).({(y0).(zeta)}.lrt).({(y0).(ksi)}.urt)}.andi 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")