Rewrite the following statement in the form `p` if only if`q :` If a tumbler is half empty, then it is half full and if a tumbler is half full, then it is half empty.

Rewrite the following statement in the form p if only if q : q : if a quadrilateral is equiangular, then it is a rectangle and if a quadrilateral is a rectangle, then it is equiangular.

Write the following statement in the form if p then q : It rains only if it is cold.

Define the following terms: Half-line

Write the following statement in the form " if p, then q ". The game is canceled only if it is raining.

Rewrite the following statements in the form p if only if q : if you watch television then your mind is free and if your mind is free, then you watch television.

Rewrite the following statement in the form p if only if q : r : For you to get an A grade, it is necessary and sufficient that you do all the homework you regularly.

Which of the following devices is half duplex ?

Complete the following sentences : If the amplitude of a sound is halfed, its loudness becomes

Find whether the following statements are true or false. If the statement is false, then write its correct statement: (i) If P={m,n} and Q={n,m},then PxxQ={(m,n),(n,m)} . (ii) If A and B are non-empty sets, then AxxB is a non-empty set of the ordered pairs (x,y) such that x in A and y in B .

State the following statement is true or false. A positive half-cell potential implies that the element can lose its electrons more readily than hydrogen.