Valid and Sound Arguments

A sound argument is a valid deductive argument with true premises.

• True

• False

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

What is validity?

• When the conclusion of an argument follows logically from its premises, it is valid.

• When the premises of an argument are true, it is true.

• When the conclusion of an argument is put into the form of a syllogism, the argument is valid.

• When the premises of an argument can be shown to be valid in all situations, the argument is valid.

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

Sound arguments

are valid.

• Yes

• No

Answer explanation

Exactly. A sound argument has true premises and conclusions which logically connect to each other.

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

All insects are animals.

A butterfly is an insect.

Therefore, a butterfly is an animal.

• Valid and Sound

• Valid and Unsound

• Invalid and Sound

• Invalid and Unsound

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

Sound reasoning and the use of valid arguments to reach a conclusion in an argumentative piece

• Logic

• Grounds

• Summarize

• Counterclaim

What is it that you do when you decide whether or not an argument is valid?

• delineate

• argue

• refute

• evaluate

Reasoning that follows logic and is easy to understand

• Bias

• Sound Reasoning

• Valid

• Refute

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1

What is an argument?

• the writer's or speaker's position on a debatable issue or problem

• facts, statistics, numerical data, quotations, specific examples, and expert opinions that support a claim

• to describe precisely

• 
  a coherent series of reasons, statements, or facts intended to support or establish a point of view

What distinguishes a 'valid' argument from a 'sound' argument in logic?

• A valid argument has true premises and a true conclusion, while a sound argument has a logically correct form.

• A valid argument has a logically correct form, while a sound argument has true premises and a true conclusion.

• Both terms mean the same and are interchangeable in logical discussions.

• A sound argument is always valid, but a valid argument may not be sound.

In logic, what role does evidence play in an argument?

• It is the main point or claim being made.

• It supports the premises and helps to establish the conclusion.

• It introduces an error that makes the argument invalid.

• It is irrelevant to the structure of an argument.

Tags

CCSS.RI.8.1

CCSS.RI.8.8

CCSS.RL.11-12.1

CCSS.RL.8.1

CCSS.RL.9-10.1