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[x1:frac].λ[y1:frac].λ[x1ix0:{((x0).class).(x1)}.inf].λ[y1iy0:{((y0).class).(y1)}.inf].λ[i:{(y0).(x0)}.is]}.<{(y1).(x1)}.eq>.{(i).(y1iy0).(y1).(x1ix0).(x1).(y0).(x0).(treq).(symeq).(refeq).(eq).(frac)}.th5 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")