| | The Logical Square and the Table of Oppositions. Five Puzzles about the Traditional Square of Opposition Solved by Taking up a Hint from Frege, p. 414, by Kienzler, Wolfgang | 2012 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Square |
| | The Logical Square and the Table of Oppositions. Five Puzzles about the Traditional Square of Opposition Solved by Taking up a Hint from Frege, p. 415, by Kienzler, Wolfgang | 2012 | Classical Sigma-2 | 3 | Square |
| | The Logical Square and the Table of Oppositions. Five Puzzles about the Traditional Square of Opposition Solved by Taking up a Hint from Frege, p. 415, by Kienzler, Wolfgang | 2012 | Classical Sigma-2 | 3 | Square |
| | Approaching the Alethic Modal Hexagon of Opposition, p. 112, by Simons, Peter | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The Power of the Hexagon, p. 3, by Beziau, Jean-Yves | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | The Power of the Hexagon, p. 4, by Beziau, Jean-Yves | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | The Power of the Hexagon, p. 5, by Beziau, Jean-Yves | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | The Power of the Hexagon, p. 6, by Beziau, Jean-Yves | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | The Power of the Hexagon, p. 9, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 10, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 10, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 10, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 11, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 11, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 12, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 12, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 15, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 4 | Triangle |
| | The Power of the Hexagon, p. 15, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 4 | Triangle |
| | The Power of the Hexagon, p. 15, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 16, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3 | Triangle |
| | The Power of the Hexagon, p. 16, by Beziau, Jean-Yves | 2012 | Contrariety 3-clique | 3–4 | Triangle |
| | The Power of the Hexagon, p. 17, by Beziau, Jean-Yves | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The Power of the Hexagon, p. 17, by Beziau, Jean-Yves | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The Power of the Hexagon, p. 18, by Beziau, Jean-Yves | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The Power of the Hexagon, p. 19, by Beziau, Jean-Yves | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |