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[sigma:Set] .​ λ[tau:Set] .​ λ[upsilon:Set] .​ λ[f:Π[x:sigma] .​ tau] .​ λ[g:Π[x:tau] .​ upsilon] .​ λ[if:{(f) .​ (tau) .​ (sigma)} .​ injective ] .​ λ[ig:{(g) .​ (upsilon) .​ (tau)} .​ injective ]} .​ <{(λ[x:sigma] .​ ((x) .​ f) .​ g) .​ (upsilon) .​ (sigma)} .​ injective > .​ λ[x:sigma] .​ λ[y:sigma] .​ λ[v:{((y) .​ {(ig) .​ (if) .​ (g) .​ (f) .​ (upsilon) .​ (tau) .​ (sigma)} .​ h ) .​ ((x) .​ {(ig) .​ (if) .​ (g) .​ (f) .​ (upsilon) .​ (tau) .​ (sigma)} .​ h ) .​ (upsilon)} .​ is ] .​ {(v) .​ (y) .​ (x) .​ (ig) .​ (if) .​ (g) .​ (f) .​ (upsilon) .​ (tau) .​ (sigma)} .​ t5

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