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[m:{(y).(x)}.moref]}.<frac>.{({({(y).(x)}.2y).((x).2x)}.ts).({(m).(y).(x)}.vo)}.fr Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100