Question 2. Consider the formulas (i) ((A B) A)A (ii) A → (B → (A → A)) where A and B are atomic formulas. (a) compute the ranks of the formulas (i) and (ii). (b) Which of the formulas (i) and (ii)...

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Question 2. Consider the formulas<br>(i) ((A B) A)A<br>(ii) A → (B → (A → A))<br>where A and B are atomic formulas.<br>(a) compute the ranks of the formulas (i) and (ii).<br>(b) Which of the formulas (i) and (ii) are tautologies?<br>

Extracted text: Question 2. Consider the formulas (i) ((A B) A)A (ii) A → (B → (A → A)) where A and B are atomic formulas. (a) compute the ranks of the formulas (i) and (ii). (b) Which of the formulas (i) and (ii) are tautologies?

Jun 04, 2022

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Question 2. Consider the formulas (i) ((A B) A)A (ii) A → (B → (A → A)) where A and B are atomic formulas. (a) compute the ranks of the formulas (i) and (ii). (b) Which of the formulas (i) and (ii)...

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