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# [9 marks) Consider the following logical expressions: i) NpA war There are three pairs of logically equivalent expressions. First determine the...

i am confused about how prove that (vii) and (ii) is logically equivalent?

3. [9 marks) Consider the following logical expressions: i) NpA war There are three pairs of logically equivalent expressions. First determine the three
pairs, and then prove for each pair that one element of the pair is logically equivalent
to the other one. Each proof must use a sequence of the logical equivalences listed
in the “Logical Equivalence Laws” and “Implication” sections of the 121 “oﬂicial”
formulasheet/formulasheet.pdf, not a truth table. (You can assume that :1: —&gt; y E
-I:J: V y). You may also use the abbreviations for the rule names which are shown on
this handout. Use a similar format to the table in Problem 2 for your solutions.

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