Explanation
Proecthesis places reasons, causes, or justifications before the principal statement or action. The audience therefore encounters the main point through an already established interpretive frame rather than without presupposition. Such precedence may create transparency by exposing motives before judgement, but it may also pre-sort criticism and make a decision seem inevitable. What matters is not only whether reasons are given but when, which ones, and how they relate to the subsequent claim. Analysis separates factual cause, normative justification, and strategic framing, then tests which alternative reasons or evaluations the ordering makes invisible.
Movement of thought
1. The prefaced reasons are classified as cause, motive, justification, or situational condition. 2. The following principal claim or action is determined independently in its scope and force. 3. The reasons are tested for argumentative adequacy and actual relevance to the main point. 4. A reordered version reveals how sequence directs expectation, assent, and attribution of responsibility. 5. Omitted counter-reasons and alternative causes reopen the interpretive frame initially established.
Scientific use case
Argumentation analysis, information structure, and legal, crisis, and science communication study proecthesis through justification type, ordering, and framing. Experiments can compare how identical reasons placed before or after a judgement alter acceptance.
Example
An editorial team writes, “Because two sources conflict, we are initially publishing the finding as provisional.” The reason directs evaluation of the decision that follows.
Counterexample
Not every causal clause or earlier item of information is proecthesis. The prefaced reason must rhetorically prepare reception of a following central statement or action.
Distinction
Distinguish proecthesis from aetiologia, procatalepsis, narratio, and ordinary causal linkage. Proecthesis is defined by preparatory precedence of reasons; procatalepsis instead anticipates an expected objection.
Effect on thought and perception
Proecthesis can make decisions intelligible and accountable. It can also pre-structure assent, weaken objections in advance, and present contingent choices as mere consequences of circumstance.
Resonance
The reason sends its interpretive impulse ahead; the following statement enters an already sounding field. What comes first tunes perception of the main point.
Cite this entry
Reich, Michael (Hrsg./ed.): „Proecthesis“. Atlas der Sprache, AT-HAR8-0012. ATLAS 260, data model 1.6.0. https://atlasoflanguage.com/concept/AT-HAR8-0012The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.
Historical background
Bullinger’s 1898 proecthesis adds a justifying sentence after a statement already made (p.465). The accessible Silva Rhetoricae entry likewise defines the figure by a reason supplied in conclusion. These two inspected witnesses agree on placement. The frozen Atlas definition, however, puts the explanation before the statement or action. That reversal is unsupported by the passages read here. The proposed historical account therefore follows the documented sequence: statement first, justification afterwards. Bullinger’s scriptural examples remain his handbook examples; additional historical authorities listed by Silva have not been newly inspected. No English first occurrence or complete German borrowing route is claimed.
How conceptual history changes the analysis
Check not only whether a reason is given, but when it appears. In the original example “We also open the library on Sundays, because many working people can only come then”, the reason justifies an announced decision. “Because many people can only come on Sundays, we also open the library then” presents the reason first. Both explain the same decision, but arrange its uptake differently. Placement matters for the attested figure; it does not establish that one order is always more persuasive.