Unit 2 of Logic – II (syllabus: Module 2 — hypothetical and disjunctive arguments and their fallacies with reference to law, rules of inference and replacement, dilemma and its refutation, hypothesis and the hypothetico-deductive method, and inquiry in law). Below: what the unit covers, the provisions it turns on, and the cases an examiner expects you to name.
What this unit covers
- What are the two rules of the hypothetical argument, and what fallacies follow from breaking them?
- When may one alternative of a disjunction be denied by affirming the other?
- What are the rules of inference, and what is the limit on their use?
- How does the rule of replacement differ from the rules of inference?
- What is a dilemma, and what are its four types?
- How is a dilemma met, and why is rebuttal not refutation?
- What are the conditions of a sound hypothesis, and what kinds of hypothesis are there?
- How does the hypothetico-deductive method work, and how does inquiry in law follow it?
Treat that list as a self-test: recite each topic's rule from memory before you open its cases.