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Informal description: ""

{λ[x: nat ] .​ λ[p:(x) .​ prop4 ] .​ λ[f:Π[y: nat ] .​ nat ] .​ λ[pf:{(f) .​ (x)} .​ prop2 ]} .​ <{((x) .​ suc ) .​ (( 1 ) .​ f)} .​ is > .​ {(pf) .​ ({(f) .​ (x)} .​ prop1 ) .​ ({((x) .​ suc ) .​ (( 1 ) .​ f)} .​ is )} .​ ande1

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