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Informal description: ""

{λ[sigma:Set] .​ λ[s0:sigma] .​ λ[t0:sigma] .​ λ[s:sigma] .​ λ[t:sigma] .​ λ[i:{({(t) .​ (t0) .​ (s0) .​ (sigma)} .​ wb ) .​ ({(s) .​ (t0) .​ (s0) .​ (sigma)} .​ wb ) .​ (sigma)} .​ is ] .​ λ[n:({(t) .​ (s) .​ (sigma)} .​ is ) .​ not ] .​ λ[j:{(s0) .​ (s) .​ (sigma)} .​ is ] .​ λ[k:{(t0) .​ (s0) .​ (sigma)} .​ is ]} .​ <({(t0) .​ (t) .​ (sigma)} .​ is ) .​ not > .​ {(k) .​ ({(j) .​ (n) .​ (i) .​ (t) .​ (s) .​ (t0) .​ (s0) .​ (sigma)} .​ t9 ) .​ (t0) .​ (s0) .​ (t) .​ (sigma)} .​ th3

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