λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
{λ[x:frac].λ[y:frac].λ[l:{(y).(x)}.lesseq]}.<({(λ[t:frac].{(x).({(t).(y)}.pf)}.eq).(frac)}.some).not>.{(λ[v:frac].{(v).(l).(y).(x)}.t2).(λ[v:frac].{(x).({(v).(y)}.pf)}.eq).(frac)}.th5 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100