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[alpha:Set] .​ λ[x: nat ] .​ λ[y: nat ] .​ λ[i:{(x) .​ (y)} .​ is ] .​ λ[f:Π[t:(y) .​ 1to ] .​ alpha]} .​ <{(y) .​ (x)} .​ lessis > .​ {({(i) .​ (x) .​ (y) .​ ( nat )} .​ symis ) .​ (y) .​ (x)} .​ lessisi2

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