λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[a:dif].λ[b:dif].λ[i:(a).intd].λ[j:(b).intd]}.<({(b).(a)}.pd).intd>.{(λ[t:({(b).(a)}.pd).negd].{(t).(j).(i).(b).(a)}.t44).(λ[t:({(b).(a)}.pd).zero].{(t).(j).(i).(b).(a)}.t38).(λ[t:({(b).(a)}.pd).posd].{(t).(j).(i).(b).(a)}.t37).(({(b).(a)}.pd).intd).({(b).(a)}.pd)}.rappd 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")