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Informal description: ""

{λ[x: nat ] .​ λ[y: nat ] .​ λ[z: nat ]} .​ <{({({(z) .​ (y)} .​ pl ) .​ (x)} .​ pl ) .​ ({(z) .​ ({(y) .​ (x)} .​ pl )} .​ pl )} .​ is > .​ {(z) .​ (λ[u: nat ] .​ λ[v:{(u) .​ (y) .​ (x)} .​ prop1 ] .​ {(v) .​ (u) .​ (y) .​ (x)} .​ t3 ) .​ ({(y) .​ (x)} .​ t1 ) .​ (λ[u: nat ] .​ {(u) .​ (y) .​ (x)} .​ prop1 )} .​ induction

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