| | Why the Logical Hexagon?, p. 102, by Moretti, Alessio | 2012 | Moretti-Pellissier Sigma-4 | 4–5 | Square |
| | Why the Logical Hexagon?, p. 102, by Moretti, Alessio | 2012 | Sigma-9 Clique | 9–10 | Heptagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 123, by Guitart, René | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 123, by Guitart, René | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 123, by Guitart, René | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 123, by Guitart, René | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Cube |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 123, by Guitart, René | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Rectangular Cuboid |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 126, by Guitart, René | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 127, by Guitart, René | 2012 | | | Hexagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 127, by Guitart, René | 2012 | | | Hexagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 127, by Guitart, René | 2012 | | | Hexagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 127, by Guitart, René | 2012 | | | Hexagon |
| | A Hexagonal Framework of the Field $\mathbb{F}_4$ and the Associated Borromean Logic, p. 128, by Guitart, René | 2012 | | | Hexagon |
| | Logic and Colour, p. 229, by Jaspers, Dany | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | Logic and Colour, p. 232, by Jaspers, Dany | 2012 | Classical Sigma-2 | 3 | Rectangle |
| | Logic and Colour, p. 237, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 237, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 239, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 239, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 240, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 243, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 244, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 244, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 245, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | Logic and Colour, p. 245, by Jaspers, Dany | 2012 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |