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Informal description: ""

{λ[a:Prop] .​ λ[b:Prop] .​ λ[c:Prop] .​ λ[e:{(c) .​ (b) .​ (a)} .​ ec3 ]} .​ <{(b) .​ (a)} .​ ec > .​ {(e) .​ ({(a) .​ (c)} .​ ec ) .​ ({(c) .​ (b)} .​ ec ) .​ ({(b) .​ (a)} .​ ec )} .​ and3e1

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