| Parte B - Problema#11 | | | | |
| P | → | ¬Q, | Q | ⊨ | ¬P | | | | | |
| [(P | → | ¬Q) | ∧ | L] | → | ¬P | | | | |
| 0 | 1 | 1 | 0 | 0 | 1 | 1 | | | | |
| 0 | 1 | 0 | 1 | 1 | 1 | 1 | | | | |
| 1 | 1 | 1 | 0 | 0 | 1 | 0 | | | | |
| 1 | 0 | 0 | 0 | 1 | 1 | 0 | | | | |
| | | Resultado: 1: Válido, Tautología | | | |
| Parte B - Problema#12 | | | | |
| P: Interés por el pasado | | |
| Q: Tener idea del presente | | |
| R: estudiar historia es una pérdida de tiempo |
| ¬P | ∧ | Q | ∧ | ¬P | ∧ | Q) | → | R | ⊨ | R |
| [(¬P | ∧ | Q) | ∧ | [(¬P | ∧ | Q) | → | R] | → | R |
| 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 |
| 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 |
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 |
| 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
| | | | | | Resultado: 1: Válido, Tautología |
| Parte B - Problema#14 | | | | |
| 14. | P: Occidete es indiferente a Yemen | | |
| Q: hay un doble estandar | | |
| P | ⊨ | P | v | Q | | | | | |
| P | → | (P | v | Q) | | | | | |
| 0 | 1 | 0 | 0 | 0 | | | | | |
| 0 | 1 | 0 | 1 | 1 | | | | | |
| 1 | 1 | 1 | 1 | 0 | | | | | |
| 1 | 1 | 1 | 1 | 1 | | | | | |
| Resultado: 1: Válido, Tautología | | | | | |
| | | | | |
| Parte B - Problema#15 | | | | |
| P: El SARS fue creado e | | |
| Q: Los cospiracionistas tienen razon | |
| (P | v | Q) | → | (~P | → | Q) | | | | |
| 0 | 0 | 0 | 1 | 1 | 0 | 0 | | | | |
| 0 | 1 | 1 | 1 | 1 | 1 | 1 | | | | |
| 1 | 1 | 0 | 1 | 0 | 1 | 0 | | | | |
| 1 | 1 | 1 | 1 | 0 | 1 | 1 | | | | |
| | Resultado: 1: Válido, Tautología | | | | |