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Informal description: ""

λ[x: nat ] .​ <{(x) .​ ((x) .​ suc )} .​ nis > .​ {(x) .​ (λ[y: nat ] .​ λ[u:(y) .​ prop1 ] .​ {(u) .​ (y)} .​ t2 ) .​ ( t1 ) .​ (λ[y: nat ] .​ (y) .​ prop1 )} .​ induction

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