λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[sigma:Set].λ[s0:(sigma).set].λ[t0:(sigma).set].λ[n:({(t0).(s0).((sigma).set)}.is).not].λ[m:({(λ[x:sigma].{(x).(t0).(s0).(sigma)}.nissetprop).(sigma)}.some).not]}.<{(λ[x:sigma].{(x).(s0).(t0).(sigma)}.nissetprop).(sigma)}.some>.{(λ[y:{(λ[x:sigma].{(x).(s0).(t0).(sigma)}.nissetprop).(sigma)}.none].{(y).(m).(n).(t0).(s0).(sigma)}.t4).(n).({(t0).(s0).((sigma).set)}.is).({(λ[x:sigma].{(x).(s0).(t0).(sigma)}.nissetprop).(sigma)}.none)}.th3 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")