λδ digital library (LDDL)
Constant
![[butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png "\lambda\delta butterfly")
Informal description: ""
{λ[x:real].λ[ix:(x).intrl].λ[y:real].λ[iy:(y).intrl].λ[ly:{(x).(y)}.lessis].λ[f:{(cx).(ly).(iy).(y).(ix).(x)}.seq].λ[pi:{(f).(cx).(ly).(iy).(y).(ix).(x)}.proofsirrelevant].λ[q:Π[t:cx].Π[u:cx].cx].λ[a:(q).assoc].λ[c:(q).commut].λ[s:{(real).(ly).(iy).(y).(ix).(x)}.seq].λ[ins:{(s).(ly).(iy).(y).(ix).(x)}.inseq].λ[pri:{(s).(real).(ly).(iy).(y).(ix).(x)}.proofsirrelevant].λ[ps:{(s).(ly).(iy).(y).(ix).(x)}.perm]}.<{({(q).(f).(ly).(iy).(y).(ix).(x)}.smpri).({(q).({(f).(ins).(s).(ly).(iy).(y).(ix).(x)}.permseq).(ly).(iy).(y).(ix).(x)}.smpri)}.is>.{({(ps).(pri).(ins).(s).(c).(a).(q).(pi).(f).(ly).(iy).(y).(ix).(x)}.t2).({(ps).(pri).(ins).(s).(c).(a).(q).(pi).(f).(ly).(iy).(y).(ix).(x)}.t12).({(q).(f).(ly).(iy).(y).(ix).(x)}.smpri).({(λ[t:({(ly).(iy).(y).(ix).(x)}.shiftl).1to].((t).{(ps).(pri).(ins).(s).(c).(a).(q).(pi).(f).(ly).(iy).(y).(ix).(x)}.ss).{(f).(ly).(iy).(y).(ix).(x)}.shiftf).({(ly).(iy).(y).(ix).(x)}.shiftl).(q)}.smpr).({(q).({(f).(ins).(s).(ly).(iy).(y).(ix).(x)}.permseq).(ly).(iy).(y).(ix).(x)}.smpri).(cx)}.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")