Geometry

logos mean"study" or in philosophies it means "word" (in Greek) also "a cosmic oder that determines change.

True
It is true that the body of an indirect proof you must show that the assumption leads to a contradiction. In math a proof is a deductive argument for a mathematical statement.

No. A corollary is a statement that can be easily proved using a theorem.

A corollary is a statement that can easily be proved using a theorem.

true

Postulates and axioms are accepted without proof in a logical system. Theorems and corollaries require proof in a logical system.

false

A conclusion provided by deductive reasoning

The term that best describes a proof in which you assume the opposite of what you want to prove is 'indirect proof'.

In a two-column proof, it is true that the left column states your reasons.

The question asks about the "following". In those circumstances would it be too much to expect that you make sure that there is something that is following?

which pair of angles in the figure below are vertical angles ?

Good evening Mr Smith.

Flowchart proof

false

Corollary.

Theorem.

Definition.

Postulate.