The negation of the statement
"If I become a teacher, then I will open a school", is
I will become a teacher and I will not open a school.
Either I will not become a teacher or I will not open a school.
Neither I will become a teacher nor I will open a school
I will not become a teacher or I will open a school.
The logically equivalent preposition of $p \Leftrightarrow q$ is
Negation of statement "If I will go to college, then I will be an engineer" is -
If $p , q$ and $r$ are three propositions, then which of the following combination of truth values of $p , q$ and $r$ makes the logical expression $\{(p \vee q) \wedge((\sim p) \vee r)\} \rightarrow((\sim q) \vee r)$ false ?
Which statement given below is tautology ?
The negation of the Boolean expression $x \leftrightarrow \sim y$ is equivalent to