The question (15 marks)
Reduce each of the following to its strict logical form, giving reasons: few artists are exempt from vanity; only a few thieves are kind-hearted; all metals except one are solid; not all the perfumes of Arabia have good fragrance; what thief would trust a thief. (15 marks)
MU Module II, head 2.3; pack ch. 07.
Plan your answer on paper before you look at the authorities — issue first, then the rule, then apply it to these facts.
It tests Unit 2 · Propositions of Logic – I.
Authorities you will need
- Keynes, Formal Logic, whose exact reading of numerically definite propositions is adopted
- Aristotle, whose four categorical forms every sentence is reduced to
How an answer is marked
A full-marks answer names the issue in one line, states the rule with its section, cites the authority, applies it to these facts and concludes — in that order. The app's model answer for this question is written in exactly that shape, with a checklist to mark your own attempt against.