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[e:{({(y) .​ (z)} .​ pf ) .​ ({(x) .​ (z)} .​ pf )} .​ eq ]} .​ <{(y) .​ (x)} .​ eq > .​ {({({(y) .​ (z)} .​ compf ) .​ (e) .​ ({(z) .​ (x)} .​ compf ) .​ ({(z) .​ (y)} .​ pf ) .​ ({(y) .​ (z)} .​ pf ) .​ ({(x) .​ (z)} .​ pf ) .​ ({(z) .​ (x)} .​ pf )} .​ tr3eq ) .​ (z) .​ (y) .​ (x)} .​ satz63b

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