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Informal description: ""

{λ[x: nat ] .​ λ[y: nat ] .​ λ[z: nat ] .​ λ[m:{(y) .​ (x)} .​ more ] .​ λ[i:{(x) .​ ({(z) .​ (y)} .​ pl )} .​ is ]} .​ <{({(m) .​ (y) .​ (x)} .​ mn ) .​ (z)} .​ is > .​ ({(m) .​ (y) .​ (x)} .​ th1a ) .​ ({(i) .​ (x) .​ ({(z) .​ (y)} .​ pl ) .​ ( nat )} .​ symis ) .​ ({(m) .​ (y) .​ (x)} .​ mn ) .​ (z) .​ {(y) .​ (x)} .​ satz8b

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