λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
{λ[alpha:Set].λ[a:alpha].λ[b:alpha]}.<{(b).({({(b).(a).(alpha)}.pair1).(alpha)}.second1).(alpha)}.is>.{(th4).(b).(a).(alpha).({(1t).(2t).((2).1to)}.is)}.itef Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100