λδ digital library (LDDL)
Constant
![\lambda\delta butterfly [butterfly]](http://helm.cs.unibo.it/lambdadelta/images/b5.png)
Informal description: ""
<∀[x:frac].∀[y:frac].∀[t:(y).(x).eq].(x).(y).eq>.λ[x:frac].λ[y:frac].λ[t:(y).(x).eq].{(t).(y).(x)}.symeq Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100