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[z:frac].λ[u:frac].λ[e:{(y).(x)}.eq].λ[f:{(z).(y)}.eq].λ[g:{(u).(z)}.eq]}.<{(u).(x)}.eq>.{({(g).(f).(u).(z).(y)}.treq).(e).(u).(y).(x)}.treq Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100