λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[r:real].λ[s:real].λ[t:real].λ[a2:dif].λ[b2:dif].λ[c2:dif].λ[a2ir:{((r).class).(a2)}.inn].λ[b2is:{((s).class).(b2)}.inn].λ[c2it:{((t).class).(c2)}.inn].λ[l:{({(t).(s)}.pl).({(t).(r)}.pl)}.less]}.<{(s).(r)}.less>.{({(l).(c2it).(b2is).(a2ir).(c2).(b2).(a2).(t).(s).(r)}.t5).(b2is).(a2ir).(b2).(a2).(s).(r)}.lessin 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")