Which of the following illustrates the truth value of the given statements? A square root of 16 is 4, and the only square root of 9 is -3.
T F → F
T T → T
F T → F
F F → F

The intersection of two planes is a point, and two lines intersect in a point.

T T → T
F T → F
T F → F
F F → F

The alphabet has 28 letters, and a week has seven days.

T T → T
T F → F
F F → F
F T → F