| | The Cube, the Square and the Problem of Existential Import, p. 130, by Chatti, Saloua; Schang, Fabien | 2013 | Classical Sigma-2 | 3 | Square |
| | The Cube, the Square and the Problem of Existential Import, p. 130, by Chatti, Saloua; Schang, Fabien | 2013 | Classical Sigma-2 | 3 | Rectangle |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Three Dimensional Shape |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Three Dimensional Shape |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Three Dimensional Shape |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | The Cube, the Square and the Problem of Existential Import, p. 131, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Three Dimensional Shape |
| | The Cube, the Square and the Problem of Existential Import, p. 132, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | The Cube, the Square and the Problem of Existential Import, p. 132, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Three Dimensional Shape |
| | The Cube, the Square and the Problem of Existential Import, p. 132, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | The Cube, the Square and the Problem of Existential Import, p. 132, by Chatti, Saloua; Schang, Fabien | 2013 | Sherwood-Czeżowski Sigma-3 | 4 | Three Dimensional Shape |
| | The metalogical hexagon of opposition, p. 113, by Beziau, Jean-Yves | 2013 | Contrariety 3-clique | 3 | Triangle |
| | The metalogical hexagon of opposition, p. 114, by Beziau, Jean-Yves | 2013 | Contrariety 3-clique | 3 | Triangle |
| | The metalogical hexagon of opposition, p. 115, by Beziau, Jean-Yves | 2013 | Contrariety 3-clique | 3 | Triangle |
| | The metalogical hexagon of opposition, p. 116, by Beziau, Jean-Yves | 2013 | Classical Sigma-2 | 3 | Rectangle |
| | The metalogical hexagon of opposition, p. 116, by Beziau, Jean-Yves | 2013 | Classical Sigma-2 | 3 | Rectangle |
| | The metalogical hexagon of opposition, p. 117, by Beziau, Jean-Yves | 2013 | Classical Sigma-2 | 3 | Rectangle |
| | The metalogical hexagon of opposition, p. 117, by Beziau, Jean-Yves | 2013 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The metalogical hexagon of opposition, p. 117, by Beziau, Jean-Yves | 2013 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The metalogical hexagon of opposition, p. 118, by Beziau, Jean-Yves | 2013 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The metalogical hexagon of opposition, p. 118, by Beziau, Jean-Yves | 2013 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The metalogical hexagon of opposition, p. 119, by Beziau, Jean-Yves | 2013 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |