λδ digital library (LDDL)
Constant
Informal description: ""
{λ[a1:cut].λ[a2:cut].λ[b1:cut].λ[b2:cut]}.<{({(({(b2).(b1)}.df).std).(({(a2).(a1)}.df).stm)}.pl).({(b2).(a1)}.pl)}.is>.{({(b2).(b1)}.isstd).({(a2).(a1)}.isstm).(({(b2).(b1)}.df).std).(b2).(({(a2).(a1)}.df).stm).(a1)}.ispl12 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100