|  | Implicature, p. 11, by Horn, Laurence | 2004 | Classical Sigma-2 | 3 | Rectangle |
|  | Cotenability and the Logic of Consequential Implication, p. 573, by Pizzi, Claudio | 2004 | Non-Sigma | 5 | Kite |
|  | Cotenability and the Logic of Consequential Implication, p. 576, by Pizzi, Claudio | 2004 | Sigma-5 Graph | 4–32 | Three Dimensional Shape |
|  | Could the Aristotelian Square of Opposition Be Translated into Chinese?, p. 142, by Tiles, Mary; Jinmei, Yuan | 2004 | Classical Sigma-2 | 3 | Rectangle |
|  | Could the Aristotelian Square of Opposition Be Translated into Chinese?, p. 146, by Tiles, Mary; Jinmei, Yuan | 2004 | Classical Sigma-2 | 3 | Rectangle |
|  | Could the Aristotelian Square of Opposition Be Translated into Chinese?, p. 147, by Tiles, Mary; Jinmei, Yuan | 2004 | Classical Sigma-2 | 3 | Rectangle |
|  | Observational Models of Requirements Evolution, p. 93, by Felici, Massimo | 2004 | Classical Sigma-2 | 3 | Rectangle |
|  | The Genesis of the Truth-Table Device, p. 59, by Anellis, Irving H. | 2004 | Contrariety 4-clique | 4 | Circle |
|  | The Genesis of the Truth-Table Device, p. 60, by Anellis, Irving H. | 2004 | Contrariety 4-clique | 4 | Tetrahedron |
|  | Frege's Lectures on Logic. Carnap's Student Notes 1910-1914, p. 69, by Frege, Gottlob; Carnap, Rudolf; Reck, Erich H. (ed.); Awodey, Steve (ed.) | 2004 | Classical Logical Graph | 3 | Digon |
|  | Nearly Every Normal Modal Logic is Paranormal, p. 280, by Marcos, João | 2005 | Classical Sigma-2 | 3 | Square |
|  | Nearly Every Normal Modal Logic is Paranormal, p. 291, by Marcos, João | 2005 | Classical Sigma-2 | 3 | Square |
|  | Towards a Mental Probability Logic, p. 94, by Pfeifer, Niki; Kleiter, Gernot D. | 2005 | Non-Sigma | 9 | Rectangle |
|  | A Pragmatic Logic of Scientific Discovery, p. 232, by Sallantin, Jean; Dartnell, Christopher; Afshar, Mohammad | 2006 | Classical Sigma-2 | 3 | Rectangle |
|  | A Pragmatic Logic of Scientific Discovery, p. 234, by Sallantin, Jean; Dartnell, Christopher; Afshar, Mohammad | 2006 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Rectangular Cuboid |
|  | A Pragmatic Logic of Scientific Discovery, p. 234, by Sallantin, Jean; Dartnell, Christopher; Afshar, Mohammad | 2006 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Rectangular Cuboid |
|  | A Generalization of Hume's Thesis, p. 111, by Woleński, Jan | 2006 | Classical Sigma-2 | 3 | Square |
|  | A Generalization of Hume's Thesis, p. 112, by Woleński, Jan | 2006 | Sigma-4 Graph | 4–16 | Square |
|  | Relevant Restricted Quantification, p. 590, by Beall, JC; Brady, Ross T.; Hazen, Allen P.; Priest, Graham; Restall, Greg | 2006 | Classical Sigma-2 | 3 | Rectangle |
|  | Relevant Restricted Quantification, p. 590, by Beall, JC; Brady, Ross T.; Hazen, Allen P.; Priest, Graham; Restall, Greg | 2006 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Rectangle |
|  | Deontic Logic, p. 201, by McNamara, Paul | 2006 | Classical Sigma-2 | 3 | Square |
|  | Deontic Logic, p. 203, by McNamara, Paul | 2006 | Classical Sigma-2 | 3 | Square |
|  | Deontic Logic, p. 203, by McNamara, Paul | 2006 | Non-Sigma | 3 | Hexagon |
|  | Deontic Logic, p. 210, by McNamara, Paul | 2006 | Classical Sigma-2 | 3 | Square |
|  | Deontic Logic, p. 248, by McNamara, Paul | 2006 | Classical Sigma-2 | 3 | Square |