λδ digital library (LDDL)
Constant
Informal description: ""
{λ[a1:cut].λ[a2:cut].λ[b1:cut].λ[b2:cut].λ[l:{({(b2).(b1)}.df).({(a2).(a1)}.df)}.lessd]}.<{({(a2).(b1)}.pl).({(b2).(a1)}.pl)}.less>.{({({(l).({(b2).(b1)}.df).({(a2).(a1)}.df)}.lemmad6).(a2).(a1).(b2).(b1)}.morede12).({(b2).(a1)}.pl).({(a2).(b1)}.pl)}.satz121 Validation parameters: sort hierarchy = "Z2", kernel options = ""
Last update: Sat, 12 Dec 2020 10:46:54 +0100