## Which of the following best describes an indirect proof?

Which of the following best describes an indirect proof? **Assume a statement true and then show it must be false**.... read more ›

## What describes an indirect proof?

An indirect proof, also called a proof by contradiction, is **a roundabout way of proving that a theory is true**. When we use the indirect proof method, we assume the opposite of our theory to be true. In other words, we assume our theory is false.... view details ›

## What is an example of indirect proof?

Indirect Proof: Examples (Geometry Concepts) - YouTube... continue reading ›

## Which term best describes a proof in which you?

Which term best describes a proof in which you assume the opposite of what you want to prove? **A conclusion proved by deductive reasoning**.... see details ›

## What are the 2 indirect proofs?

There are two kinds of indirect proofs: **the proof by contrapositive, and the proof by contradiction**.... see more ›

## How do you do an indirect proof?

**The steps to follow when proving indirectly are:**

- Assume the opposite of the conclusion (second half) of the statement.
- Proceed as if this assumption is true to find the contradiction.
- Once there is a contradiction, the original statement is true.
- DO NOT use specific examples.

## What is the other term for indirect proof?

**Proof by contradiction** is also known as indirect proof, apagogical argument, proof by assuming the opposite, and reductio ad impossibilem.... see details ›

## What is direct and indirect proof?

Direct Vs Indirect Proof

Direct proofs always assume a hypothesis is true and then logically deduces a conclusion. In contrast, an indirect proof has two forms: Proof By Contraposition. Proof By Contradiction.... read more ›

## Which of the following should be the first statement of indirect proof?

First Step Of Indirect Proof

"**Assuming for the sake of contradiction that** …" "If we momentarily assume the statement is false …" "Let us suppose that the statement is false …"... view details ›

## Which of the following requires a proof?

A proposition which requires a proof to establish the truth is **a theorem**. Therefore, the theorem needs a proof.... read more ›

## Which of the following are accepted without proof?

**A postulate**, like an axiom, is a statement that is accepted without proof; however, it deals with specific subject matter (e.g., properties of geometrical figures) and thus is not so general as an axiom.... see more ›

## Which best describes the meaning of the theorem?

1 : **a formula, proposition, or statement in mathematics or logic deduced or to be deduced from other formulas or propositions**. 2 : an idea accepted or proposed as a demonstrable truth often as a part of a general theory : proposition the theorem that the best defense is offense.... see more ›

## What is an informal proof?

On the one hand, formal proofs are given an explicit definition in a formal language: proofs in which all steps are either axioms or are obtained from the axioms by the applications of fully-stated inference rules. On the other hand, informal proofs are **proofs as they are written and produced in mathematical practice**.... view details ›

## What is an informal proof?

On the one hand, formal proofs are given an explicit definition in a formal language: proofs in which all steps are either axioms or are obtained from the axioms by the applications of fully-stated inference rules. On the other hand, informal proofs are **proofs as they are written and produced in mathematical practice**.... continue reading ›

## What is direct proof and indirect proof?

Direct Vs Indirect Proof

Direct proofs always assume a hypothesis is true and then logically deduces a conclusion. In contrast, an indirect proof has two forms: Proof By Contraposition. Proof By Contradiction.... read more ›

## What is typically the first step of an indirect proof?

In an indirect proof, instead of showing that the conclusion to be proved is true, you show that all of the alternatives are false. To do this, you must **assume the negation of the statement to be proved**. Then, deductive reasoning will lead to a contradiction: two statements that cannot both be true.... read more ›