philosophy-research-guide

Philosophy Research Guide

A skill for conducting rigorous philosophical research, from constructing arguments and analyzing texts to writing publishable philosophy papers. Covers major subfields, argumentation methods, and the distinctive methodology of philosophical inquiry.

Philosophical Argumentation

Argument Structure and Evaluation

Every philosophical argument can be reconstructed in standard form:

Premise 1: All knowledge requires justification. (epistemic principle)
Premise 2: Sensory experience alone cannot provide certainty. (empirical claim)
Premise 3: If knowledge requires certainty, then sensory experience
           is insufficient for knowledge. (conditional from P1, P2)
Conclusion: Therefore, knowledge requires something beyond sensory
            experience. (from P1, P2, P3 by modus ponens)

Validity and Soundness Checks

def evaluate_argument(premises: list[str], conclusion: str,
                       premises_true: list[bool],
                       valid: bool) -> dict:
    """
    Evaluate an argument's logical properties.

    An argument is:
    - Valid: if the conclusion follows necessarily from the premises
    - Sound: if it is valid AND all premises are true
    - Cogent (inductive): if premises make conclusion probable
    """
    all_true = all(premises_true)
    sound = valid and all_true

    return {
        'n_premises': len(premises),
        'valid': valid,
        'all_premises_true': all_true,
        'sound': sound,
        'diagnosis': (
            'Sound argument' if sound
            else 'Valid but unsound (false premise)' if valid
            else 'Invalid argument -- conclusion does not follow'
        )
    }

Common Logical Fallacies

Identify and avoid these in philosophical writing:

Fallacy	Structure	Example
Affirming the consequent	If P then Q; Q; therefore P	"If it rained, the street is wet. The street is wet. Therefore it rained."
Begging the question	Assuming the conclusion in a premise	"God exists because the Bible says so, and the Bible is true because it is God's word."
False dilemma	Presenting only two options when more exist	"Either we have free will or everything is determined."
Equivocation	Using a term with different meanings	"A bank is beside a river. I deposit money in a bank. Therefore I deposit money beside a river."
Straw man	Misrepresenting an opponent's position	Attacking a weakened version of the actual argument