1. Prove by falsification: a. ((p) (rVq)) = ((r) ((-p)q)) b. (p (rq))=(pq) V-r...

  

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1. Prove by falsification: a. ((p) → (rVq)) = ((r) → ((-p)→q)) b. (p (rq))=(pq) V-r 2. Define the meaning of declarative sentences and give some examples. 3. Decide whether the following are declarative sentences or not: a. All cows are brown. b. The Earth is further from the sun than Venus c. There is life on Mars. d. 2x2 = 5. e. x+2 = 2x f. Do you want to go to the movies? g. This sentence is false 1. Prove by falsification: a. ((p) → (rVq)) = ((r) → ((-p)→q)) b. (p (rq))=(pq) V-r 2. Define the meaning of declarative sentences and give some examples. 3. Decide whether the following are declarative sentences or not: a. All cows are brown. b. The Earth is further from the sun than Venus c. There is life on Mars. d. 2x2 = 5. e. x+2 = 2x f. Do you want to go to the movies? g. This sentence is false

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The image youve provided contains two main tasks proving a logical equivalence by falsification and defining the meaning of declarative sentences alon... View the full answer