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Informal description: ""

{λ[x: nat ] .​ λ[y: nat ] .​ λ[z: nat ] .​ λ[l:{({(z) .​ (y)} .​ pl ) .​ ({(z) .​ (x)} .​ pl )} .​ less ]} .​ <{(y) .​ (x)} .​ less > .​ {(l) .​ (λ[u:{(y) .​ (x)} .​ less ] .​ {(u) .​ (z) .​ (y) .​ (x)} .​ satz19c ) .​ (λ[u:{(y) .​ (x)} .​ more ] .​ {(u) .​ (z) .​ (y) .​ (x)} .​ satz19a ) .​ (λ[u:{(y) .​ (x)} .​ is ] .​ {(u) .​ (z) .​ (y) .​ (x)} .​ satz19b ) .​ ({(z) .​ (y) .​ (x)} .​ t2 ) .​ ({(z) .​ (y) .​ (x)} .​ t1 ) .​ ({({(z) .​ (y)} .​ pl ) .​ ({(z) .​ (x)} .​ pl )} .​ less ) .​ ({({(z) .​ (y)} .​ pl ) .​ ({(z) .​ (x)} .​ pl )} .​ more ) .​ ({({(z) .​ (y)} .​ pl ) .​ ({(z) .​ (x)} .​ pl )} .​ is ) .​ ({(y) .​ (x)} .​ less ) .​ ({(y) .​ (x)} .​ more ) .​ ({(y) .​ (x)} .​ is )} .​ th12

Validation parameters: sort hierarchy = "Z2", kernel options = ""