Question

If we assume the modern view of existential import, why is the following syllogism invalid? No computer is made of clay. All computers are electronic devices. Some electronic devices are not made of clay.

Answer 1

Answer:

because the conclusion is not in agreement with the two premises.

Explanation:

Remember, the term syllogism refers to the form of reasoning that draws its conclusion based on the stated premises. In other words, a conclusion is reached if it satisfies all or part of the premises.

In this case, the statement "No computer is made of clay" and  "All computers are electronic devices" should be inferred to mean, No electronic devices are made of clay" not "Some electronic devices are not made of clay," since the two premises neither suggest that electronic devices are made from clay.