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Informal description: ""

{λ[sigma:Set] .​ λ[tau:Set] .​ λ[f:Π[x:sigma] .​ tau] .​ λ[s:sigma]} .​ <{({(s) .​ (f) .​ (tau) .​ (sigma)} .​ tofs ) .​ (f) .​ (tau) .​ (sigma)} .​ image > .​ {({({(s) .​ (f) .​ (tau) .​ (sigma)} .​ tofs ) .​ (tau)} .​ refis ) .​ (s) .​ (λ[x:sigma] .​ {((x) .​ f) .​ ({(s) .​ (f) .​ (tau) .​ (sigma)} .​ tofs ) .​ (tau)} .​ is ) .​ (sigma)} .​ somei

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