λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[sigma:Set].λ[r:∀[x:sigma].∀[y:sigma].Prop].λ[refr1:∀[x:sigma].(x).(x).r].λ[symr1:∀[x:sigma].∀[y:sigma].∀[t:(y).(x).r].(x).(y).r].λ[trr1:∀[x:sigma].∀[y:sigma].∀[z:sigma].∀[t:(y).(x).r].∀[u:(z).(y).r].(z).(x).r].λ[alpha:Set].λ[fu2:Π[x:sigma].Π[y:sigma].alpha].λ[ff2:{(fu2).(alpha).(trr1).(symr1).(refr1).(r).(sigma)}.fixfu2].λ[e:{(trr1).(symr1).(refr1).(r).(sigma)}.ect].λ[f:{(trr1).(symr1).(refr1).(r).(sigma)}.ect].λ[s:sigma].λ[see:{({(e).(trr1).(symr1).(refr1).(r).(sigma)}.ecect).(s).(sigma)}.esti].λ[t:sigma].λ[tef:{({(f).(trr1).(symr1).(refr1).(r).(sigma)}.ecect).(t).(sigma)}.esti]}.<{({(f).(e).(ff2).(fu2).(alpha).(trr1).(symr1).(refr1).(r).(sigma)}.indeq2).((t).(s).fu2).(alpha)}.is>.{({(tef).(t).(see).(s).(f).(e).(ff2).(fu2).(alpha).(trr1).(symr1).(refr1).(r).(sigma)}.t9).({(tef).(t).(see).(s).(f).(e).(ff2).(fu2).(alpha).(trr1).(symr1).(refr1).(r).(sigma)}.t11).({(f).(e).(ff2).(fu2).(alpha).(trr1).(symr1).(refr1).(r).(sigma)}.indeq2).((t).{(e).(ff2).(fu2).(alpha).(trr1).(symr1).(refr1).(r).(sigma)}.i).((t).(s).fu2).(alpha)}.tris 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")