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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[e:{(x) .​ (z)} .​ eq ] .​ λ[f:{(y) .​ (z)} .​ eq ]} .​ <{(y) .​ (x)} .​ eq > .​ {(f) .​ ({(e) .​ (x) .​ (z)} .​ symeq ) .​ (y) .​ (z) .​ (x)} .​ treq

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