Talk:Rule of inference

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Rule of inference is a former featured article candidate. Please view the links under Article milestones below to see why the nomination was archived. For older candidates, please check the archive.

Rule of inference has been listed as one of the Philosophy and religion good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.

Article milestones
Date	Process	Result
April 3, 2025	Good article nominee	Listed
January 4, 2026	Peer review	Reviewed
February 17, 2026	Featured article candidate	Not promoted
A fact from this article appeared on Wikipedia's Main Page in the "Did you know?" column on June 17, 2025. The text of the entry was: Did you know ... that logicians using classical rules of inference* can deduce any arbitrary statement from a contradiction?*
Current status: Former featured article candidate, current good article

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The content of Inference rule was merged into Rule of inference. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. For the discussion at that location, see its talk page.

Broken citation

Latest comment: 7 days ago4 comments3 people in discussion

"Hurley 2016, pp. 323–252" is invalid. Paprika72 (talk) 10:35, 11 September 2026 (UTC)Reply

What do you mean it's "invalid"? The Hurley 2016 book is cited, and the book has 456 pages according to Google Books. Do you mean that you've read those pages and they don't support the statement they're used for in this article? MartinPoulter (talk) 10:54, 11 September 2026 (UTC)Reply

It's a typo: the second number is smaller than the first one. I fixed it. The passage says rules of replacement ... to express these rules, a new symbol, called a double colon (::), is used and lists several examples. Phlsph7 (talk) 11:11, 11 September 2026 (UTC)Reply

D'oh! I didn't notice that. Thanks for fixing! MartinPoulter (talk) 12:40, 11 September 2026 (UTC)Reply