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Informal description: ""

{λ[x0: rat ] .​ λ[y0: rat ] .​ λ[z0: rat ] .​ λ[l:{(y0) .​ (x0)} .​ less ] .​ λ[k:{(z0) .​ (y0)} .​ lessis ]} .​ <{(z0) .​ (x0)} .​ less > .​ {(λ[x: frac ] .​ λ[y: frac ] .​ λ[z: frac ] .​ λ[xi:{((x0) .​ class ) .​ (x)} .​ inf ] .​ λ[yi:{((y0) .​ class ) .​ (y)} .​ inf ] .​ λ[zi:{((z0) .​ class ) .​ (z)} .​ inf ] .​ {(zi) .​ (yi) .​ (xi) .​ (z) .​ (y) .​ (x) .​ (k) .​ (l) .​ (z0) .​ (y0) .​ (x0)} .​ t2 ) .​ ({(z0) .​ (x0)} .​ less ) .​ (z0) .​ (y0) .​ (x0)} .​ ratapp3

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