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Informal description: ""

{λ[sigma:Set] .​ λ[tau:Set] .​ λ[f:Π[x:sigma] .​ tau] .​ λ[i:{(f) .​ (tau) .​ (sigma)} .​ injective ] .​ λ[t0:tau]} .​ <{(λ[x:sigma] .​ {((x) .​ f) .​ (t0) .​ (tau)} .​ is ) .​ (sigma)} .​ amone > .​ λ[x:sigma] .​ λ[y:sigma] .​ λ[u:{((x) .​ f) .​ (t0) .​ (tau)} .​ is ] .​ λ[v:{((y) .​ f) .​ (t0) .​ (tau)} .​ is ] .​ {(v) .​ (u) .​ (y) .​ (x) .​ ({(t0) .​ (tau)} .​ refis ) .​ (t0) .​ (t0) .​ (i) .​ (f) .​ (tau) .​ (sigma)} .​ th1

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