Logic or Epistemology? A Split Vote on a Compulsory Module
A pre-university philosophy board of 14 members is finalising a compulsory module. The draft chapter, 'Truth, Validity, and Justification', contains three boxes: (1) 'All metals expand when heated; this rod is metal; therefore this rod expands'; (2) 'A belief is justified only if it is produced by a reliable belief-forming process'; (3) 'The morning star and the evening star are the same planet.' One faction wants the whole chapter labelled Logic because every box involves reasoning; another wants it labelled Epistemology because boxes 2 and 3 concern belief and justification. The vote is 7–7. The chair asks you to produce a one-page ruling before the printer's deadline, with no duplicate content across the module. You have the three boxes, the module outline, and 90 minutes. Your ruling must assign each box to a primary branch while noting any overlap.
1. Assign each of the three boxes to a primary branch (logic, epistemology, or metaphysics) and explain the criterion you used. Where a box straddles branches, state the primary placement and the overlap.
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Use the criterion: what is the box primarily doing? Box 1 is primarily logic: its point is the form of a deductive argument. Whether the premises are true is an empirical matter; validity concerns whether the conclusion follows if they are true. Box 2 is primarily epistemology: reliabilism is a theory of justification, not a rule of inference. Box 3 is trickier. Its surface form is an identity statement, but the content - that two historically distinct appearances are one planet - is an a posteriori identity claim. It is not settled by logical form alone. Primary placement: epistemology, with a note on metaphysics of reference. Overlap: Box 3 can illustrate logical substitution, but that does not make it logic; Box 2 can be formalised, but formalisation does not turn a theory of justification into logic.
2. The chair wants a one-page ruling. Draft the ruling's key recommendation for how the chapter should be split, and justify why labelling the whole chapter 'Logic' would be pedagogically misleading.
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Recommendation: split the chapter. Put Box 1 in a short Logic section on validity, soundness, and premise-conclusion form. Put Boxes 2 and 3 in an Epistemology section on justification, reliability, and a posteriori knowledge, with a cross-reference back to Box 1. Labelling the whole chapter 'Logic' would mislead because students would infer that any claim expressed as an argument is thereby a logical claim. Box 2 is the clearest danger: a reliabilist thesis can be placed in premise-conclusion form, but its truth depends on a theory of knowledge, not on inference rules. Box 3 would compound the error by suggesting that identity is a purely formal matter. The split preserves the module's no-duplication rule: logic teaches form; epistemology teaches the status of beliefs.
3. A board member says: 'If a claim can be put in premise-conclusion form, it is logic.' Assess this criterion with reference to Box 2.
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The criterion is overinclusive. Almost any claim can be regimented into premises and a conclusion: 'P1: a belief is produced by a reliable process; C: it is justified.' That regimentation displays the inferential shape, but the substantive issue is whether reliabilism is true as an account of justification. Logic evaluates whether the conclusion follows from the premises; it does not adjudicate the epistemological merits of the premise. The criterion also confuses a necessary condition for logical treatment - arguability - with a sufficient condition for belonging to logic. Box 2 belongs to epistemology because its central question is normative: what makes a belief justified? The board member's test would swallow most of philosophy.