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foreword	milestones	version 2	version 2	(background - core - applications)	library	(static LDDL directory)
citations	visibility	version 1	version 1	(static HELM directory)	helena

Informal description: ""

{λ[x0: rat ] .​ λ[y0: rat ] .​ λ[z0: rat ] .​ λ[u0: rat ] .​ λ[m:{(y0) .​ (x0)} .​ more ] .​ λ[n:{(u0) .​ (z0)} .​ more ]} .​ <{({(u0) .​ (y0)} .​ pl ) .​ ({(z0) .​ (x0)} .​ pl )} .​ more > .​ {(λ[x: frac ] .​ λ[y: frac ] .​ λ[z: frac ] .​ λ[u: frac ] .​ λ[xi:{((x0) .​ class ) .​ (x)} .​ inf ] .​ λ[yi:{((y0) .​ class ) .​ (y)} .​ inf ] .​ λ[zi:{((z0) .​ class ) .​ (z)} .​ inf ] .​ λ[ui:{((u0) .​ class ) .​ (u)} .​ inf ] .​ {(ui) .​ (zi) .​ (yi) .​ (xi) .​ (u) .​ (z) .​ (y) .​ (x) .​ (n) .​ (m) .​ (u0) .​ (z0) .​ (y0) .​ (x0)} .​ t1 ) .​ ({({(u0) .​ (y0)} .​ pl ) .​ ({(z0) .​ (x0)} .​ pl )} .​ more ) .​ (u0) .​ (z0) .​ (y0) .​ (x0)} .​ ratapp4

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