Verify by using the laws of logic whether the following statement is a Tautology or not:
~`\(\~q\to p)\to\~\q`
Solution:
~`\(\~q\to p)\to\~\q`
~`\(\~q
v p)\to\~\q`
`\(q v
p)\to\~\q`
`\(q v
p) v \~\q`
`\(p v
q) v \~\q`
`\p v
(q v \~\q)`
`\p v t`
`t`
So, the given
statement is Tautology
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