MEDIUM
Earn 100

If a: y-6=9

b: y=15

The biconditional a↔b represents which of the following.

50% studentsanswered this correctly

Important Questions on Mathematical Logic

MEDIUM
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The Boolean expression p∧~q⇒q∨~p is equivalent to:
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the statement "If it is raining, then I will not come", is
HARD
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the statement "If you will work, you will earn money" is:
MEDIUM
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
Write the negation of the statement a person is rich if and only if he is a software engineer.
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the statement ''if I am not feeling well, then I will go to the doctor" is
MEDIUM
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
Write the negation of the statement if diagonals of a parallelogram are perpendicular, then it is a rhombus. 
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The inverse of the statement (p∧~q)→r is
MEDIUM
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table

Consider the following three statements:

P:5 is a prime number

Q:7 is a factor of 192

R: LCM of 5 and 7 is 35

Then the truth value of which one of the following statements is true?

EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the following statement, "If the side of a square doubles, then its area increases four times", is
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
Let A,B,C and D be four non-empty sets. The contrapositive statement of “If A⊆B and B⊆D , then A⊆C ” is
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table

Consider the following statements:

P: Ramu is intelligent.

Q: Ramu is rich.

R: Ramu is not honest.

The negation of the statement "Ramu is intelligent and honest if and only if Ramu is not rich" can be expressed as:

MEDIUM
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The statement ∼p↔~q is
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the statement: "If the weather is fine then my friends will come and we will go for a picnic." is
MEDIUM
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
Negation of the statement (p∨r)⇒(q∨r) is :
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The negation of the statement : "Getting above 95% marks is necessary condition for Hema to get the admission in good college".
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The proposition ~p∨p∧~q is equivalent to
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
If p→~p∨~q is false, then the truth values of p and q are, respectively
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the statement "If I reach the station in time, then I will catch the train" is
EASY
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
The contrapositive of the statement "I go to school if it does not rain" is
HARD
Mathematics>Algebra>Mathematical Logic>Logic Connectives, Compound Statement, Truth Table
Consider the following statements:

P: Suman is brilliant

Q: Suman is rich

R: Suman is honest

The negation of the statement, "Suman is brilliant and dishonest if and only if Suman is rich" can be equivalently expressed as