λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[c:dif].λ[a:dif].λ[b:dif].λ[n:((a).negd).not].λ[o:((b).negd).not].λ[e:{(c).({(a).(a)}.td)}.eq].λ[f:{(c).({(b).(b)}.td)}.eq]}.<{({(a).(a)}.td).({({(a).(b)}.td).({({(b).(a)}.td).({(a).(a)}.td)}.md)}.pd)}.eq>.{({({(b).(a)}.td).({(a).(a)}.td)}.pdmd).({({(a).(b)}.comtd).({({(b).(a)}.td).({(a).(a)}.td)}.md).({(b).(a)}.td).({(a).(b)}.td)}.eqpd2).({(a).(a)}.td).({({(b).(a)}.td).({({(b).(a)}.td).({(a).(a)}.td)}.md)}.pd).({({(a).(b)}.td).({({(b).(a)}.td).({(a).(a)}.td)}.md)}.pd)}.treq 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")