Assertion and reason

Exercise and reference answers

Questions

1. Reason

   It rests on a resemblance, which may not extend to the point at issue.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   An analogy cannot establish its conclusion with certainty.

2. Reason

   The whole argument depends on the two cases being alike where it matters.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   A relevant difference damages an analogy badly.

3. Reason

   Deduction draws conclusions that follow necessarily.

   Verdict

   The assertion is false and the reason is true.

   Assertion

   An analogy is a kind of deduction.

Explanation