| | Caramuel's Theory of Opposition, p. 366, by Lenzen, Wolfgang | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Caramuel's Theory of Opposition, p. 366, by Lenzen, Wolfgang | 2017 | Buridan Sigma-4 | 6 | Cube |
| | Caramuel's Theory of Opposition, p. 351, by Lenzen, Wolfgang | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 314, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 317, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 319, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 319, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 320, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 320, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 321, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 322, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 323, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Aristotle's Squares of Opposition, p. 323, by Correia, Manuel | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 229, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 229, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 229, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 231, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 231, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 231, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 233, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 233, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 233, by Smessaert, Hans; Demey, Lorenz | 2017 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 233, by Smessaert, Hans; Demey, Lorenz | 2017 | Degenerate Sigma-2 with Unconnectedness 4 | 4 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 236, by Smessaert, Hans; Demey, Lorenz | 2017 | Classical Sigma-2 | 3 | Rectangle |
| | Duality Patterns in 2-PCD Fragments, p. 236, by Smessaert, Hans; Demey, Lorenz | 2017 | | | Digon |