λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[x0:rat].λ[y0:rat].λ[z0:rat].λ[x:frac].λ[y:frac].λ[z:frac].λ[xix0:{((x0).class).(x)}.inf].λ[yiy0:{((y0).class).(y)}.inf].λ[ziz0:{((z0).class).(z)}.inf]}.<{(({({(z0).(y0)}.pl).(x0)}.ts).class).({({(z).(y)}.pf).(x)}.tf)}.inf>.{({(ziz0).(yiy0).(z).(y).(z0).(y0)}.picp).(xix0).({(z).(y)}.pf).(x).({(z0).(y0)}.pl).(x0)}.tict 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")