λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[sigma:Set].λ[p:∀[x:sigma].Prop].λ[s:sigma].λ[sp:(s).p].λ[t:sigma].λ[tp:(t).p].λ[i:{(t).(s).(sigma)}.is]}.<{({(tp).(t).(p).(sigma)}.out).({(sp).(s).(p).(sigma)}.out).({(p).(sigma)}.ot)}.is>.{(i).({(tp).(t).(p).(sigma)}.otax2).(t).({(sp).(s).(p).(sigma)}.otax2).(s).({(p).(sigma)}.otax1).(λ[x:{(p).(sigma)}.ot].{(x).(p).(sigma)}.in).(sigma).({(p).(sigma)}.ot)}.isinv 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")