PROOF FORMATS

Which of the following statements has the same truth value as the statement "If it is Friday, then Bruce has beans for supper."?

If Bruce does not have beans for supper, then it is not Friday.

Make a deduction from the two given statements. 1.) All right angles are equal. 2.) ∠1 and ∠2 are right angles.

∠1 equals ∠2

Make a deduction from the two given statements. 1.) All cows have tails. 2.) Jersey is a cow.

Jerry has a tail

Given the following two statements, what conclusion can be made? Three noncollinear points determine a plane. Points S, O, N are noncollinear.

The points S, O, N form a plane.

Select whether the following statement is always true, sometimes true, or never true. In a proof the figure should fit the hypothesis.

always

Select whether the following statement is always true, sometimes true, or never true. The conclusion of a statement is the then part.

always

Select whether the following statement is always true, sometimes true, or never true. The hypothesis of a statement is the if part.

always

Select whether the following statement is always true, sometimes true, or never true. A proof should have more steps in the reason column than steps in the statement column.

never

Select whether the following statement is always true, sometimes true, or never true. In the plan of a proof, you should use the plan that was used on previous theorems.

sometimes