| | Structures of Oppositions in Public Announcement Logic, p. 336, by Demey, Lorenz | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Structures of Oppositions in Public Announcement Logic, p. 336, by Demey, Lorenz | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Structures of Oppositions in Public Announcement Logic, p. 336, by Demey, Lorenz | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Structures of Oppositions in Public Announcement Logic, p. 336, by Demey, Lorenz | 2012 | Sherwood-Czeżowski Sigma-3 | 4 | Rectangle |
| | Logical Opposition and Collective Decisions, p. 350, by Kovač, Srećko | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | Logical Opposition and Collective Decisions, p. 350, by Kovač, Srećko | 2012 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | Logical Opposition and Collective Decisions, p. 351, by Kovač, Srećko | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Rectangle |
| | Logical Opposition and Collective Decisions, p. 355, by Kovač, Srećko | 2012 | Sherwood-Czeżowski Sigma-3 | 4 | Hexagon |
| | Logical Opposition and Collective Decisions, p. 351, by Kovač, Srećko | 2012 | Non-Sigma | | Hexagon |
| | Logical Opposition and Collective Decisions, p. 351, by Kovač, Srećko | 2012 | Non-Sigma | | Hexagon |
| | Logical Opposition and Collective Decisions, p. 352, by Kovač, Srećko | 2012 | Non-Sigma | | Hexagon |
| | Logical Opposition and Collective Decisions, p. 353, by Kovač, Srećko | 2012 | Non-Sigma | | Hexagon |
| | Towards a Logic of Argumentation, p. 560, by Amgoud, Leila; Prade, Henri | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | Towards a Logic of Argumentation, p. 560, by Amgoud, Leila; Prade, Henri | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | Towards a Logic of Argumentation, p. 561, by Amgoud, Leila; Prade, Henri | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | Towards a Logic of Argumentation, p. 562, by Amgoud, Leila; Prade, Henri | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Towards a Logic of Argumentation, p. 564, by Amgoud, Leila; Prade, Henri | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 100, by Campos Benítez, Juan Manuel | 2012 | Classical Sigma-2 | 3 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 101, by Campos Benítez, Juan Manuel | 2012 | Classical Sigma-2 | 3 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 102, by Campos Benítez, Juan Manuel | 2012 | Non-Sigma | 6 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 104, by Campos Benítez, Juan Manuel | 2012 | Non-Sigma | 6 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 104, by Campos Benítez, Juan Manuel | 2012 | Non-Sigma | 6 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 105, by Campos Benítez, Juan Manuel | 2012 | Non-Sigma | 6 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 105, by Campos Benítez, Juan Manuel | 2012 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Square |
| | The Medieval Modal Octagon and the S5 Lewis Modal System, p. 115, by Campos Benítez, Juan Manuel | 2012 | Buridan Sigma-4 | 6 | Rectangle |