INKWIRE(7) argument errors INKWIRE(7)
begging-question
Begging the Question
The conclusion is loaded into the premise, so the argument travels in a circle.
NAME
Definition
An argument begs the question when one of its premises could only be accepted by someone who already accepts the conclusion. The reasoning is valid — the conclusion really does follow — but it supports nothing, because the premise is doing the work the conclusion was supposed to earn.
The circularity is rarely a bare "X because X". It is usually hidden in a definition, an adjective or a presupposition. "This policy is harmful because it is bad for the country" is circular once you notice that "bad for the country" is just "harmful" wearing a coat.
It matters because circular arguments feel strong from the inside. The premise is obvious to the arguer, so the inference feels like proof.
SIGNALS
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S1
The premise needs the conclusion to be accepted
Test each premise on someone who rejects the conclusion. If they must give up their position before they can grant the premise, the premise is not evidence.
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S2
A definition smuggles in the verdict
Terms like "real", "genuine", "true", "natural" or "serious" often carry the conclusion inside them. Redefine the word neutrally and see whether the argument still moves.
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S3
Synonym substitution breaks the argument
If replacing key words with their near-synonyms leaves you with "X because X", you have found the circle.
Three checks, in order
- Write the premises and conclusion as separate numbered lines. Nothing may appear in both.
- Ask what evidence would convince someone who starts out disagreeing. If the answer is "none, they would have to agree first", the argument is circular.
- Look for the load-bearing adjective: which word is doing the work that a reason should be doing?
Where the link breaks
| The premise | Why it is circular |
|---|---|
| The book is authoritative because experts endorse it | "Authoritative" is being defined as "endorsed by experts", so the premise repeats the conclusion |
| The drug works because it is effective | "Works" and "is effective" are the same claim twice |
| He is reliable because he always tells the truth | "Reliable" here just means "tells the truth", which is what is being argued |
EXAMPLES
This is the best candidate because she has the most experience, and experience is what makes a candidate best.
Why it fails
The second clause is not an independent premise; it is the conclusion restated. If experience is defined as what makes a candidate best, then "she has the most experience" cannot be evidence for her being best — it is a re-description.
Kindred entries
- [F] motte-and-bailey Advance a bold claim, retreat to a modest one when challenged, then quietly re-advance.
- [F] equivocation One word, two meanings, and the argument switches between them mid-sentence.
- index — /t/fallacy/
[+] Notes and objections 3
- Is a valid circular argument actually wrong?
- It is not logically invalid — the conclusion does follow. It is epistemically empty: it gives nobody who doubts the conclusion a reason to stop doubting.
- How is this different from a premise that is merely controversial?
- A controversial premise can be supported by other evidence and might be true. A question-begging premise is one whose only support is the conclusion it is meant to establish.
- Why do people say "begging the question" when they mean "raising the question"?
- It is a widespread misuse. Raising a question means prompting it. Begging it means assuming it — the older, technical sense used here.
Scope — Reference material for reading arguments, not professional advice.