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Informal description: ""

{λ[sigma:Set] .​ λ[tau:Set] .​ λ[f:Π[x:sigma] .​ tau] .​ λ[g:Π[x:sigma] .​ tau] .​ λ[i:{(g) .​ (f) .​ (Π[x:sigma] .​ tau)} .​ is ] .​ λ[s:sigma] .​ λ[t:sigma] .​ λ[j:{(t) .​ (s) .​ (sigma)} .​ is ]} .​ <{((t) .​ g) .​ ((s) .​ f) .​ (tau)} .​ is > .​ {({(t) .​ (i) .​ (g) .​ (f) .​ (tau) .​ (sigma)} .​ fise ) .​ ({(j) .​ (t) .​ (s) .​ (f) .​ (tau) .​ (sigma)} .​ isf ) .​ ((t) .​ g) .​ ((t) .​ f) .​ ((s) .​ f) .​ (tau)} .​ tris

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