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Informal description: ""

{λ[a:Prop] .​ λ[b:Prop] .​ λ[c:Prop] .​ λ[e:{(c) .​ (b) .​ (a)} .​ ec3 ] .​ λ[o:{(b) .​ (a)} .​ or ]} .​ <(c) .​ not > .​ {(λ[x:b] .​ {(x) .​ ({(e) .​ (c) .​ (b) .​ (a)} .​ th2 ) .​ (c) .​ (b)} .​ ece1 ) .​ (λ[x:a] .​ {(x) .​ ({(e) .​ (c) .​ (b) .​ (a)} .​ th3 ) .​ (a) .​ (c)} .​ ece2 ) .​ (o) .​ ((c) .​ not ) .​ (b) .​ (a)} .​ orapp

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