Comprehensive Ethics Study Guide: Abortion, Logic, Normative Theories, and Fallacies

Judith Jarvis Thomson’s Abortion Argument and Moral Frameworks

• Core Thesis on Fetal Personhood:
  • Judith Jarvis Jarvis Thomson’s 1971 article ("A Defense of Abortion") presents a defense of abortion that grants, for the sake of argument, the premise that a fetus is a person from the moment of conception with a full right to life.
  • Thomson argues that even if personhood is granted, obtaining an abortion remains morally permissible in substantial circumstances, notably including cases of rape.
  • This reframes standard abortion debates, which historically assume that establishing fetal personhood automatically renders abortion morally impermissible.
• Value Hierarchy: Right to Life vs. Bodily Autonomy:
  • The core dilemma pivots on a conflict of values: the fetus's right to life versus the woman's right to bodily autonomy.
  • If an ethical position asserts that the right to life unconditionally supersedes bodily autonomy in all circumstances, it concludes that abortion is wrong even in cases of rape.
  • If bodily autonomy is prioritized, abortion is permissible in cases where the woman has not consented to host the fetus, regardless of whether the fetus has a right to life.
• Thomson's Position on Early Fetuses:
  • Although Thomson grants fetal personhood hypothetically to build her primary argument, she explicitly maintains that an early fetus is not actually a person.
  • She asserts that a newly fertilized ovum or early fetus is no more a person than an acorn is an oak tree.
• Parental Responsibility and Moral Obligation:
  • Thomson counters the objection that mothers have an automatic moral obligation to carry a fetus to term.
  • A biological connection alone does not automatically create a moral obligation to sacrifice bodily autonomy to preserve another's life unless that responsibility is voluntarily assumed.
  • Carrying an unintended pregnancy to term represents the actions of a "Good Samaritan" (an act of extreme generosity), but morality and justice do not legally or obligatorily require individuals to be Good Samaritans at high personal costs.

Principles of Critical Thinking, Validity, and Soundness

• Three Conditions of a Good Argument:
  1. Validity: The logical structure ensures the conclusion follows necessarily from the premises.
  2. Soundness: The argument is structurally valid AND all of its premises are factually true.
  3. Non-Question-Begging: The premises do not presuppose or assume the truth of the conclusion they are trying to prove.
• Formal Definition of Validity:
  • Validity concerns logical form and structure exclusively, not empirical truth.
  • An argument is valid if and only if it is logically impossible for all premises to be true while the conclusion is false:         $\text{If all premises are true} \implies \text{Conclusion must be true}$
  • Actual truth values do not dictate validity. A valid argument can have entirely false premises and a false conclusion. An invalid argument can consist of entirely true premises and a true conclusion.
• Representative Valid Argument Forms:
  • Modus Ponens (Affirming the Antecedent):         $\text{Premise 1: If } P \text{, then } Q$$\text{Premise 2: } P$$\text{Conclusion: Therefore, } Q$
  • Modus Tollens (Denying the Consequent):         $\text{Premise 1: If } P \text{, then } Q$$\text{Premise 2: Not } Q$$\text{Conclusion: Therefore, not } P$
• Representative Invalid Argument Forms (Formal Fallacies):
  • Affirming the Consequent:         $\text{Premise 1: If } P \text{, then } Q$$\text{Premise 2: } Q$$\text{Conclusion: Therefore, } P$
    • Example: "If you live in Troy, you live in Alabama. You live in Alabama, therefore you live in Troy." (Invalid: living in Alabama does not guarantee living in Troy).
  • Denying the Antecedent:         $\text{Premise 1: If } P \text{, then } Q$$\text{Premise 2: Not } P$$\text{Conclusion: Therefore, not } Q$
    • Example: "If you own all the gold in Fort Knox, then you will be rich. You do not own all the gold in Fort Knox, therefore you cannot be rich." (Invalid: there are other ways to be rich).
• Step-by-Step Argument Evaluation Procedure:
  • Step 1: Determine Validity based strictly on logical form.
  • Step 2: If the argument is invalid, stop immediately. The argument is bad and automatically unsound. Truth values of premises are irrelevant once invalidity is established.
  • Step 3: If the argument is valid, evaluate soundness by examining the empirical truth values of the premises.
• Evaluation Scenarios for Exam Applications:
  • Scenario A: Invalid Form (e.g., Affirming the Consequent) + Instruction: "Assume all premises are true."
    • Correct Determination: Invalid (Truth value assumptions cannot make an invalid structure valid).
  • Scenario B: Valid Form (e.g., Modus Ponens) + Instruction: "Assume at least one premise is false."
    • Correct Determination: Valid but not sound.
  • Scenario C: Valid Form + Instruction: "Assume all premises are true."
    • Correct Determination: Sound.

Informal Logical Fallacies and Metaethical Doctrines

• Informal Logical Fallacies:
  • Ad Hominem Fallacy: Attacking an arguer's personal character, lifestyle, background, hypocrisy, or personal traits (e.g., calling them hypocritical, addressing their sexual orientation) rather than addressing the logical substance of their argument. The personal traits of the arguer do not impact the logical validity of the argument.
  • Straw Man Fallacy: Distorting, exaggerating, misrepresenting, or oversimplifying an opponent's argument to make it extreme or unrealistic, allowing it to be easily knocked down or rejected.
  • Principle of Charity: The logical opposite of the Straw Man fallacy. Mandates interpreting an opponent's argument in its strongest, most rational, and most generous form before attempting to critique it.
• Metaethical Doctrines:
  • Moral Relativism: The metaethical view that there is no objective moral reality. Moral rightness or wrongness is relative to specific cultural norms or individual subjective approvals.
  • Emotivism: The non-cognitivist view that moral statements are not factual propositions but are expressions of personal emotional feelings or attitudes toward an action.
  • Distinction between Relativism and Emotivism: Relativism frames morality around cultural standards, norms, or subjective approvals. Emotivism reduces moral utterances strictly to raw emotional reactions (e.g., "Boo to stealing!").

Utilitarianism: Act vs. Rule and Consequentialist Dilemmas

• Act Utilitarianism vs. Rule Utilitarianism:
  • Act Utilitarianism: Assesses each specific individual action directly based on whether that specific act maximizes overall net utility/happiness.
  • Rule Utilitarianism: Assesses actions based on whether they conform to general rules that, if universally followed by society, maximize utility over the long term.
• The Harvest Case (Rufus Scenario):
  • Scenario: Rufus is a person deemed to have low societal value. A doctor can harvest Rufus's organs without his consent to save multiple critically ill "genius babies."
  • Act Utilitarian Assessment: Sacrificing Rufus produces a higher total number of saved lives and immediate net positive utility, making organ harvesting morally obligatory under pure act utilitarianism.
  • Rule Utilitarian Assessment: Society adheres to a general rule: "Do not kill innocent human beings to harvest their organs." Violating this rule destroys public trust in medical institutions, decreasing overall long-term societal utility. Thus, Rule Utilitarianism forbids killing Rufus.
  • The Lapsing Objection: Opponents argue that Rule Utilitarianism eventually collapses back into Act Utilitarianism because rules require infinite sub-rules and exceptions to avoid bad utility outcomes, ultimately assessing individual acts.
• The Unlucky Terrorist Scenario (Status Case):
  • Scenario: A terrorist plans to detonate a bomb in a occupied building. The plot is discovered, prompting a complete evacuation. Before the bomb goes off, an unrelated structural accident collapses the building. The terrorist's plot directly caused the building to be empty, thereby saving everyone who would have died in the collapse.
  • Consequentialist Dilemma: Outcome-based Act Utilitarianism must evaluate the terrorist's action as good because it ultimately produced massive positive utility (saving lives), exposing a rift between consequentialist outcome evaluation and moral responsibility regarding intent.

Non-Consequentialist Normative Theories: Deontology and Natural Law

• Kantian Ethics (Deontology):
  • Core Axiom: Humanity consists of rational creatures capable of deriving absolute moral commands (Categorical Imperatives) through pure reason.
  • First Formulation of the Categorical Imperative (Universalizability):         $\text{"Act only according to that maxim whereby you can at the same time will that it should become a universal law."}$
    • Moral laws must function like laws of nature or mathematical truths: absolute, universal, unchangeable, and permitting zero exceptions.
  • Second Formulation of the Categorical Imperative (Formula of Humanity):         $\text{"Act in such a way that you treat humanity, whether in your own person or in the person of any other, always as an end and never merely as a means."}$
    • Distinguishes between using someone as a instrumentally necessary means (while respecting their rational agency and dignity) versus treating someone as a mere means (exploiting them without regard for intrinsic worth).
  • Objections to Kantian Ethics:
    • Assumption of Absolute Rationality: Human beings frequently act irrationally; human nature does not consistently align with ideal rational agency.
    • Absolutism/Inflexibility: Kantian prohibition against lying is absolute. In cases like hiding Anne Frank in an attic from Nazis, an absolute rule against lying creates an unavoidable moral conflict: telling the truth directly facilitates murder, while lying violates an absolute duty.
• Natural Law Theory:
  • Claims that objective moral principles are derived from the natural order, intrinsic human nature, and reason.
  • Example: Human beings naturally desire self-preservation and social connection. Thus, actions destroying life are inherently wrong, whereas actions promoting human flourishing and personal relationships are morally good.
• Fallacy of Potentiality in Abortion Debates:
  • Hidden Assumption: Potentiality arguments assume that if an entity $X$ has the potential to develop into $P$, then $X$ currently possesses the moral rights and properties of $P$.
  • Counterexamples:
    • An acorn has the potential to become an oak tree, but an acorn is not an oak tree.
    • A fertilized egg has the potential to become a chicken, but an egg is not a chicken.
  • Conclusion: Potential attributes ($P$) cannot be applied to prove present moral rights or current status of $X$.

Questions & Discussion

• Question: What is the practical difference between Moral Relativism and Emotivism?
  • Response: Moral Relativism states that moral statements have real truth values that depend on cultural approval or social standards. Emotivism claims moral statements have no truth value at all and are simply non-cognitive expressions of internal emotion.
• Question: How does Rule Utilitarianism respond to the organ harvesting scenario (Rufus case)?
  • Response: Rule Utilitarianism prohibits organ harvesting because following the rule "do not harvest organs from innocent people" yields greater long-term societal stability and overall utility than evaluating each case individually.
• Question: What is the objection regarding Kant's categorical imperative against lying?
  • Response: The absolute ban on lying prevents moral flexibility in emergency scenarios—such as lying to Nazis to protect Anne Frank—forcing a choice between two absolute wrongdoings under strict Kantian rules.

Course Assessment and Logistics

• Abortion Quiz Deadline: Friday by 6:00 PM.
• Test Structure and Preparation:
  • The exam consists entirely of 4-choice multiple-choice questions.
  • There are zero essay questions on the test.
  • Memorizing definitions is insufficient; questions require analyzing logical validity, argument soundness, fallacies, objections, and counter-responses.
• Discussion Assignment Specifications:
  • Initial discussion post minimum length: 200 words.
  • Audience response/commentary minimum length: 100 words.
  • Topic Constraint: Must choose an ethical topic strictly from the "Ethical Dilemmas" section of the textbook.
  • Exclusion Constraint: Students are explicitly prohibited from selecting Judith Jarvis Thomson or Mary Anne Warren for this assignment.