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Informal description: ""

{λ[a:Prop] .​ λ[b:Prop] .​ λ[c:Prop] .​ λ[o:{(c) .​ (b) .​ (a)} .​ or3 ] .​ λ[e:{(c) .​ (b) .​ (a)} .​ ec3 ]} .​ <{(c) .​ (b) .​ (a)} .​ orec3 > .​ {(e) .​ (o) .​ ({(c) .​ (b) .​ (a)} .​ ec3 ) .​ ({(c) .​ (b) .​ (a)} .​ or3 )} .​ andi

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