State the Obvious

Seeing Beyond the Obvious

Sarcoidosis: A Systemic Inflammatory Disease Sarcoidosis is a systemic inflammatory disease characterized by the deposition of noncaseating granulomas in multiple organs, including the lungs, skin, central nervous system, and heart. The diagnosis of cardiac sarcoidosis is important because it confers a poorer prognosis, with an increased risk of ventricular arrhythmias, heart failure, and sudde...

The obvious answer.

In his book titled “Everything Is Obvious. Once You Know the Answer”, Duncan Watts posits that what we value as worthwhile is often determined by chance. He cites the case of the famous painting Mona Lisa that is now considered among the world’s masterpieces, and hangs in a special place in the Musée du Louvre in Paris. For centuries, the Mona Lisa was of no particular interest, and was thought...

Missing the obvious.

Z' = 4 structure without obvious pseudosymmetry: implications for the formation of solid-state compounds.

Crystals of 4-chloro-2'-biphenylol grown at 263 K and studied at both 293 and 142 K are loosely packed and contain OH.O bonded tetramers composed of four crystallographically independent molecules (Z' = 4). Approximate symmetry relationships between independent molecules are apparent in many, perhaps even most, structures with Z' > 1, but are not obvious in this structure. The inefficient cryst...

Obvious Logical Inferences

A precise d e f i n i t i o n is g iven of a c lass of inferences in predicate log ic which it la proposed to I d e n t i f y w i t h the c lass of "obvious" In ferences. A mechanism fo r Implementing "obvious in ference" as a r u l e of Inference in proof checking systems is discussed.