ATLAS OF LANGUAGE

AT-ARG-W0243 · ATLAS 260

Enthymeme

An argument whose premise or conclusion remains unstated because an audience is expected to supply it.

Part of the subject path Argumentation, Logic and Discourse

Why is this entry in the Atlas?

A · Analytical concept R1 · Distinct contribution to understanding

Enthymeme examines the supplementation of unstated argumentative bridges. It asks which shared assumptions support assent and whether they withstand scrutiny. The argumentative role distinguishes it from implicature and presupposition, while historical scope should not be reduced to every abbreviated syllogism.

Colours and admission grounds

The rectangular label identifies the entry function: F – linguistic figure or procedure; A – analytical concept; G – foundational concept; E – selected concrete case. The rounded badge indicates the admission ground: R1 – distinctive contribution; R2 – necessary foundation; R3 – justified illustrative case. This editorial rationale explains the current selection rather than claiming an undocumented original selection history.

Explanation

An enthymeme is an argument whose inferential force depends on at least one unstated premise assumed to be available to an audience. The gap is not merely a defect: listeners supply it from shared beliefs, experience, or situated values and thereby participate in the conclusion. This makes enthymeme rhetorically effective and critically demanding. What appears self-evident may be contested, group-specific, or false. Analysis need not force every abbreviated argument into a formal syllogism, but should reconstruct the bridge actually suggested in context. The concept reveals how common ground carries arguments and how unspoken assumptions organise assent.

Movement of thought

1. A claim and at least one stated reason appear as an abbreviated argumentative movement. 2. Between reason and conclusion, a premise remains unstated but recoverable for the audience. 3. Listeners supply this bridge from common ground, endoxa, norms, or situated knowledge. 4. A counter-test formulates alternative hidden premises and examines their validity and actual shareability. 5. The argument returns as a joint construction whose persuasiveness depends on the supplied assumption.

Scientific use case

Argumentation analysis can document explicit statements, reconstructed bridge premises, and alternative readings. Experiments can test which groups supply the same assumption and when omission increases assent.

Example

“This source was subsequently altered, so it must not be adopted without review.” The unstated premise is that altered sources do not automatically retain their earlier reliability.

Counterexample

“All humans are mortal; Socrates is human; therefore Socrates is mortal” states all central premises. It is a complete syllogism and, in that form, not a rhetorically abbreviated enthymeme.

Distinction

Distinguish enthymeme from a complete syllogism, implicature, presupposition, and petitio principii. It contains an argumentatively supplied gap; not every unspoken meaning functions as a premise.

Effect on thought and perception

The enthymeme actively involves an audience in inference, condenses argument, and may simultaneously shelter contested assumptions from immediate examination.

Resonance

A missing step of thought is answered by the listeners’ knowledge; only this echo closes the argumentative connection.

Cite this entry

Reich, Michael (Hrsg./ed.): „Enthymeme“. Atlas der Sprache, AT-ARG-W0243. ATLAS 260, data model 1.6.0. https://atlasoflanguage.com/concept/AT-ARG-W0243

https://atlasoflanguage.com/concept/AT-ARG-W0243

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Historical background

Aristotle calls the enthymeme a rhetorical syllogism. He explains why an audience may supply a familiar proposition without its being spoken, but omission is not his sole account of what makes the argument rhetorical. The discussion also concerns persuasion about contingent matters and the premises available to an audience. The Atlas definition centred on an unspoken premise or conclusion should therefore be treated as one influential description, not as an exhaustive statement of Aristotle's theory. An original argument that a candidate is eligible because she is eighteen may depend on an unspoken rule, whose applicability must still be checked. Making it explicit clarifies the inference without automatically validating the rule. The passage provides conceptual history; later reconstructions and the English technical term need further historical evidence.

How conceptual history changes the analysis

Make the supplied premise explicit and test its applicability. Clarifying an inference does not validate its rule.

References for the historical section

Historical source evidence and Atlas applications remain separate; this import does not assert new first attestations or a fresh exhaustive source verification.