Understanding Syllogisms
A Grade 11 ELA worksheet on identifying and analyzing syllogisms, including their structure, validity, and soundness.
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Understanding Syllogisms
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Read each question carefully and provide your best answer. This worksheet assesses your understanding of syllogisms, including their structure, validity, and soundness.
A syllogism is a form of deductive reasoning where a conclusion is drawn from two given or assumed propositions (premises). A classic example is: All men are mortal. Socrates is a man. Therefore, Socrates is mortal.
For a syllogism to be considered *valid*, its conclusion must logically follow from its premises. For it to be *sound*, it must be valid AND have true premises.
1. Which of the following best describes a valid syllogism?
Its premises are true, but the conclusion may be false.
Its conclusion logically follows from its premises, regardless of their truth.
Its premises and conclusion are all true.
It contains only two premises.
1. A syllogism that is both valid and has true premises is considered .
2. The two propositions from which a conclusion is drawn in a syllogism are called .
1. Consider the following syllogism: All birds have feathers. A penguin has feathers. Therefore, a penguin is a bird. Is this syllogism valid? Is it sound? Explain your reasoning.
1. All valid syllogisms are also sound.
True
False
Analyze a recent political speech or advertisement you have encountered. Identify any syllogisms present. Discuss whether these syllogisms are valid, sound, or neither, providing specific textual evidence to support your claims. If a syllogism is flawed, explain the nature of the flaw.