home	news	documentation	specification		implementation
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[x: frac ] .​ λ[y: frac ] .​ λ[z: frac ] .​ λ[l:{(y) .​ (x)} .​ lesseq ] .​ λ[k:{(z) .​ (y)} .​ lesseq ] .​ λ[e:{(y) .​ (x)} .​ eq ]} .​ <{(z) .​ (x)} .​ lesseq > .​ {(k) .​ ({(e) .​ (y) .​ (x)} .​ symeq ) .​ (z) .​ (x) .​ (y)} .​ eqlesseq1

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