| 26 | p | q | r | (p→q) | (q → r) | [(p→q) ʌ (q → r)] | ¬r | (p ʌ ¬r ) | [(p → q) ʌ (q → r)] → (p ʌ ¬r ) |
| 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | |
| 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | |
| 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | |
| 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | |
| 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | |
| 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | |
| 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | |
| 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 |
| 27 | p | q | r | ¬p | (q ʌ r) | [¬p ↔ (q ʌ r)] | ¬q | (¬q v r) | ¬(¬q v r) | [¬p ↔ (q ʌ r)] v ¬(¬q v r) |
| 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | |
| 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | |
| 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | |
| 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | |
| 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | |
| 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | |
| 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | |
| 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
| 28 | p | q | ¬q | (p v ¬q) | (p → q) | [(p v ¬q) → (p → q)] | ¬p | (¬p → q) | [(¬p → q) v ¬p] | [(p v ¬q) → (p → q)] → [(¬p → q) v ¬p] | [(p v ¬q) → (p → q)] → [(¬p → q) v ¬p] v ¬p |
| 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | |
| 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | |
| 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
| 29 | p | q | (p v q) | ¬(p v q) | (p → q) | [¬(p v q) v (p → q)] | ¬p | (¬p → q) | [(¬p → q) v ¬p] | [¬(p v q) v (p → q)] → [(¬p → q) v ¬p] |
| 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | |
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | |
| 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 |
| 30 | p | q | r | (p → q) | (q → r) | [(p → q) ʌ (q → r)] | (p ʌ r ) | [(p → q) ʌ (q → r)] → (p ʌ r ) |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | |
| 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | |
| 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | |
| 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | |
| 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | |
| 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | |
| 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 |
| 31 | p | q | r | (p ʌ q) | [(p ʌ q) → r] | (p v r) | [(p ʌ q) → r] → (p v r) |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 1 | 1 | 0 | 1 | 0 | 1 | 1 | |
| 1 | 0 | 1 | 0 | 1 | 1 | 1 | |
| 1 | 0 | 0 | 0 | 1 | 1 | 1 | |
| 0 | 1 | 1 | 0 | 1 | 1 | 1 | |
| 0 | 1 | 0 | 0 | 1 | 0 | 0 | |
| 0 | 0 | 1 | 0 | 1 | 1 | 1 | |
| 0 | 0 | 0 | 0 | 1 | 0 | 0 |
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