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Turing’s lecture to the London Mathematical Society (20 February 1947) reports that it has been said that computing machines can only carry out the processes they are instructed to do, and argues that a machine whose instruction tables could modify themselves would be like a pupil who had added much by his own work. Copy claim link
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Supporting evidence: primary · 1 source; Context: primary · 1 source
Date 1947-02-20 · event Records dated 1947 → Role Contesting, Earliest located Register (kind of text) Nonfiction Engagement Engages a premise. Grants the statement only for machines used as slaves on jobs thought out in detail, and argues that a machine able to modify its own instruction tables would make progress its makers had not foreseen. Scope and limits The lecture puts its case as a supposition (“Let us suppose we have set up a machine…”). The quoted report of the contested view names no one who held it.
The evidence 02 primary source Context only
Lecture to the London Mathematical Society on 20 February 1947 (AMT/B/1) ↗ The Turing Digital Archive, King’s College, Cambridge · Publication date unknown
Archived copy, captured 2026-04-28: Lecture to the London Mathematical Society on 20 February 1947 (AMT/B/1) ↗
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Source excerpt “It has been said that computing machines can only carry out the processes that they are instructed to do.” Location in source Typescript p. 22 (scan 29), paragraph opening
How it was read Retrieved directly from the publisher
Machine-checked · 2026-11-04
Source details and check notes Authors Alan M. Turing Version Annotated typescript photocopy, scans 30–31 (typescript pp. 23–24), inspected by the pre-1996 candidate search. Canonical address Open the canonical source ↗ Accessed 2026-10-06 Language English (en) Archive copy Open archived copy, captured 2026-04-28: Lecture to the London Mathematical Society on 20 February 1947 (AMT/B/1) ↗ . No publication date is recorded for this source. An archive copy shows only what the archive retrieved on 2026-04-28. It does not prove what the page said earlier, and it can differ from the copy checked on 2026-10-06.Attribution Alan M. Turing, lecture of 20 February 1947, Turing Digital Archive AMT/B/1, King’s College, Cambridge. Reuse No open redistribution licence asserted. Bibliographic metadata and labelled paraphrases only: archive scans are provided for research and their images are not reproduced. Phrases in quotation marks inside a paraphrase identify the source's wording. Check notes Candidate pack passage, antecedent texts (research/prehistory). Read on the page image for the candidate pack; it could not be matched mechanically. Scan without a text layer; quotations read from the page images (pdftoppm at 90 dpi) on 2026-11-02. The view the lecture goes on to contest. No human editorial review. primary source Supports the claim
Lecture to the London Mathematical Society on 20 February 1947 (AMT/B/1) ↗ The Turing Digital Archive, King’s College, Cambridge · Publication date unknown
Archived copy, captured 2026-04-28: Lecture to the London Mathematical Society on 20 February 1947 (AMT/B/1) ↗
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Cite the original source Cite the original document, not Selekoa. Check these details against it.
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Source excerpt “It would be like a pupil who had learnt much from his master, but had added much more by his own work.” Location in source Typescript p. 22 (scan 29), same paragraph
How it was read Retrieved directly from the publisher
Machine-checked · 2026-11-04
Source details and check notes Authors Alan M. Turing Version Annotated typescript photocopy, scans 30–31 (typescript pp. 23–24), inspected by the pre-1996 candidate search. Canonical address Open the canonical source ↗ Accessed 2026-10-06 Language English (en) Archive copy Open archived copy, captured 2026-04-28: Lecture to the London Mathematical Society on 20 February 1947 (AMT/B/1) ↗ . No publication date is recorded for this source. An archive copy shows only what the archive retrieved on 2026-04-28. It does not prove what the page said earlier, and it can differ from the copy checked on 2026-10-06.Attribution Alan M. Turing, lecture of 20 February 1947, Turing Digital Archive AMT/B/1, King’s College, Cambridge. Reuse No open redistribution licence asserted. Bibliographic metadata and labelled paraphrases only: archive scans are provided for research and their images are not reproduced. Phrases in quotation marks inside a paraphrase identify the source's wording. Check notes Candidate pack passage, antecedent texts (research/prehistory). Read on the page image for the candidate pack; it could not be matched mechanically. Scan without a text layer; quotations read from the page images (pdftoppm at 90 dpi) on 2026-11-02. Typed text; ‘had’ read where the typing is faint (‘h d’). No human editorial review. Status and meaning Editorial status. Machine-checked . Machines found this record and checked it against its sources; no person accepted it individually. Each evidence record above shows how it was checked.
Relation. A passage of the document disputes the proposition or a premise it depends on. The record documents the text’s position, not who is right.
Date. Lecture date, as headed on the typescript (scan 1: "Lecture to L.M.S. Feb. 20 1947") and as recorded in the King’s College catalogue. The text was first printed in 1986; the date identifies the lecture.
Record ID pre-u01-turing-1947-contests