Prove the logical equivalence ๏ฟข ๐ โ ๏ฟข ๐ โก ๐ โ ๐ using equivalencelaws.
Question
Prove the logical equivalence ๏ฟข ๐ โ ๏ฟข ๐ โก ๐ โ ๐ using equivalencelaws.
Solution
Sure, here is the step-by-step proof of the logical equivalence ยฌ๐ โ ยฌ๐ โก ๐ โ ๐ using equivalence laws:
- Start with the left side of the equivalence: ยฌ๐ โ ยฌ๐
- Apply the implication law, which states that ๐ โ ๐ is equivalent to ยฌ๐ โจ ๐. This gives us ยฌยฌ๐ โจ ยฌ๐.
- Apply the double negation law, which states that ยฌยฌ๐ is equivalent to ๐. This gives us ๐ โจ ยฌ๐.
- Apply the commutative law, which allows us to swap the order of the disjunction. This gives us ยฌ๐ โจ ๐.
- Apply the implication law again, this time in reverse, to get ๐ โ ๐.
- Therefore, ยฌ๐ โ ยฌ๐ is logically equivalent to ๐ โ ๐.
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