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citations	visibility	version 1	version 1	(static HELM directory)	helena

Informal description: ""

{λ[x: frac ] .​ λ[y: frac ] .​ λ[z: frac ] .​ λ[u: frac ] .​ λ[e:{(y) .​ (x)} .​ eq ] .​ λ[l:{(u) .​ (z)} .​ lessf ]} .​ <{({(u) .​ (y)} .​ tf ) .​ ({(z) .​ (x)} .​ tf )} .​ lessf > .​ {({(l) .​ (x) .​ (u) .​ (z)} .​ satz72f ) .​ ({(e) .​ (u) .​ (y) .​ (x)} .​ eqtf1 ) .​ ({(z) .​ (x)} .​ tf ) .​ ({(u) .​ (y)} .​ tf ) .​ ({(u) .​ (x)} .​ tf )} .​ eqlessf2

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