Legal Theory & Positivism: Key Concepts and Theories

Jurisprudence (Subject Definition)

The study of general features of law across all systems (not specific statutes), focusing on how law generates reasons for action.

Prudential Reasons

Reasons for action based on self-interest, goals, or avoiding negative consequences like fines.

Moral Reasons

Reasons for action based on right and wrong, such as the duty not to endanger others.

Substantive Reasons

Reasons based on the merit of the action itself, like not eating an apple because it is rotten.

Content-Independent Reasons

Reasons to act based on who said so, not because the action itself is good (e.g., keeping a promise just because you promised).

Authoritative Reason

A specific type of Content-Independent reason based on a superior's command, such as a military order.

The Legal Chain

The sequence of how law works: Social Sources lead to Legal Norms, which then generate Legal Reasons.

The Standard Picture of Law

We find legal norms by taking a Social Fact (like an Act), reading the Materials (text), and using an Analytical Technique (interpretation).

Legislation (Nature & Aim)

A canonical text intended to create or change legal norms directly.

Binding Precedent (Nature & Aim)

A canonical exemplar (an example to follow) intended to decide a specific dispute, not just write laws.

Ratio Decidendi

The binding principle of a case found by combining Material Facts and the Conclusion.

Distinguishing

Arguing that a precedent does not apply because your case has a specific feature (Material Fact) that was not present in the previous case.

Social Sources Thesis

The Positivist belief that law comes entirely from social facts (what people do), not from morality, God, or nature.

Separation Thesis

The Positivist belief that law does not necessarily have to be moral to be valid.

Command Theory (Austin)

Defined law as a General Order of a Sovereign Backed by Threats of Habitual Obedience (GOSBTHO).

Monist Theory

Austin's view that there is only one type of legal norm (Orders).

Austin's Critique: The Sovereign

Austin fails because courts make law but aren't the Sovereign, forcing him to invent the fiction of "tacit commands."

"Being Obliged" vs "Having an Obligation"

Austin confuses force (Being Obliged by a gunman) with a sense of duty (Having an Obligation to follow rules).

Internal Point of View

The perspective of someone who follows the law because they accept it as a standard of conduct, not just out of fear.

Hart's 3 Defects of Primary Rules

Uncertainty (don't know the rules), Stasis (can't change rules), and Inefficiency (can't settle disputes).

Secondary Rules (Hart's Solution)

Rules about rules that fix the defects: Rule of Recognition, Rules of Change, and Rules of Adjudication.

Rule of Recognition

The secondary rule that fixes Uncertainty by providing the ultimate test to identify what counts as valid law.

Hart's Definition of Law

The union of Primary Rules (duties) and Secondary Rules (powers).

Natural Law Core Claim

Necessarily, legal norms are rational standards of conduct and must connect to morality.

Strong Natural Law Thesis

The view (e.g., Radbruch) that an unjust law is no law at all.

Weak Natural Law Thesis

The view (e.g., Aquinas) that an unjust law is a valid but defective law.

The Scissors Analogy

Just as blunt scissors are still scissors but defective, wicked laws are still valid laws but defective.

Hard Cases

Cases where written rules run out or are ambiguous, which Positivists claim requires discretion but Dworkin claims requires Principles.

Rules vs. Principles

Rules apply all-or-nothing, while Principles have weight and must be balanced against each other.

Law as Integrity

Dworkin's theory that interpretation must make legal history the best it can be by combining Fit (history) and Justification (morality).

Inclusive (Soft) Positivism

Morality can be a condition of validity if the social custom (Rule of Recognition) says so, based on the Separability Thesis.

Exclusive (Hard) Positivism

Morality is never a condition of validity, and if law uses moral terms it is just delegating power to the judge, based on the Separation Thesis.

4 Criteria to Evaluate Theories

Coverage, Simplicity, Normativity, and Distinctiveness.