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Informal description: ""

{λ[p:∀[x: nat ] .​ Prop] .​ λ[s:(p) .​ some ] .​ λ[l:∀[x: nat ] .​ {(x) .​ (p)} .​ lb ] .​ λ[y: nat ] .​ λ[yp:(y) .​ p]} .​ <({(y) .​ ({( 1 ) .​ (y)} .​ pl ) .​ (p)} .​ lbprop ) .​ not > .​ {({(yp) .​ (y) .​ (l) .​ (s) .​ (p)} .​ t4 ) .​ (yp) .​ ({(y) .​ ({( 1 ) .​ (y)} .​ pl )} .​ lessis ) .​ ((y) .​ p)} .​ th4

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