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Informal description: ""

{λ[x1: nat ] .​ λ[x2: nat ] .​ λ[y1: nat ] .​ λ[y2: nat ] .​ λ[i:{(y1) .​ (x1)} .​ is ] .​ λ[j:{(y2) .​ (x2)} .​ is ]} .​ <{({(y2) .​ (y1)} .​ fr ) .​ ({(x2) .​ (x1)} .​ fr ) .​ ( frac )} .​ is > .​ {({(j) .​ (y2) .​ (x2) .​ (y1)} .​ isd ) .​ ({(i) .​ (y1) .​ (x2) .​ (x1)} .​ isn ) .​ ({(y2) .​ (y1)} .​ fr ) .​ ({(x2) .​ (y1)} .​ fr ) .​ ({(x2) .​ (x1)} .​ fr ) .​ ( frac )} .​ tris

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