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23 May 2025

diffhist Kernel (algebra) 16:59 +45 Nempnet talk contribs (Added authors to footnotes, fixed footnote errors)
diffhist m Algebraic structure 16:56 0 Unlimiter talk contribs (Hyphenated some terms.)
diffhist Image (mathematics) 11:12 0 NeilOnWiki talk contribs (→top: Postponed use of 'X to Y' to second para from first, where it wasn't needed.)
diffhist Kernel (algebra) 03:37 +1 Gramix13 talk contribs (Sorted references)
diffhist Kernel (algebra) 03:34 +37 Gramix13 talk contribs (→Group homomorphisms: Added citation previously removed.)
diffhist Kernel (algebra) 03:28 +18 Gramix13 talk contribs (Changed "Ralph" to "McKenzie") Tag: harv or sfn error
diffhist Kernel (algebra) 03:27 +1,224 Gramix13 talk contribs (Added page citations for Dummit, Foote)
diffhist Kernel (algebra) 02:30 +69 Gramix13 talk contribs (Added page numbers for Ralph et. al.) Tag: harv or sfn error
diffhist Kernel (algebra) 02:09 +88 Gramix13 talk contribs (Added page citations for Fraleigh.) Tag: harv or sfn error
diffhist Kernel (algebra) 01:57 +90 Gramix13 talk contribs (Added page citations for Hungerford)
diffhist Kernel (algebra) 01:07 +69 Gramix13 talk contribs (Added page citations for Axler)
diffhist Normal subgroup 00:46 +8 JayBeeEll talk contribs (Revert a year-old edit that was mostly pointless but also created many run-on sentences)
diffhist Kernel (algebra) 00:43 +72 Gramix13 talk contribs (Added page citations for Burris, Stanley) Tag: harv or sfn error

22 May 2025

diffhist Kernel (algebra) 17:45 −2 David Eppstein talk contribs (attempt to make the short description less technical while avoiding vague and unspecific "concept in" uselessness)
diffhist Normal subgroup 14:57 +27 129.104.244.74 talk (→Operations taking subgroups to subgroups)
diffhist Kernel (algebra) 09:45 +15 D.Lazard talk contribs (Undid revision 1291568716 by Gramix13 (talk) WP:NOTDEF means that the description needs not to be accurrate, but suffices to give an idea of the subject of the article. Here "concept in" is too vague. "Inverse image of 0" is correct, since for most readers, "homomorphism" means "linear map". If you disagree, take it on the talk page.) Tag: Undo
diffhist Kernel (algebra) 07:39 +170 David Eppstein talk contribs (book citations need page numbers (best separately for each citation); also at least one citation is missing altogether)
diffhist Kernel (algebra) 01:49 −15 Gramix13 talk contribs (Addressing WP:SDNOTDEF by using "Concept in [academic field]" format since there are two definitions for kernel depending on whether the structure is group-like (not to mention some groups don't have a "zero"), so it wouldn't be possible to accurately describe it with one definition while also avoiding jargon. I am open to discussion on what short description would be appropriate for this article.) Tag: Reverted

21 May 2025

diffhist Image (mathematics) 18:33 −55 NeilOnWiki talk contribs (→top: Replaced the use of "former notion" referring to preimage of a function, which I found confusing; removed superfluous link to "domain" of a function.)
diffhist Kernel (algebra) 08:14 −4,179 D.Lazard talk contribs (Restored revision 1291401192 by Gramix13 (talk): Restoring edits reverted by mistake. This does not mean that they must be kept) Tags: Twinkle Undo Disambiguation links added
diffhist Kernel (algebra) 08:09 +4,162 D.Lazard talk contribs (Reverted 18 edits by Gramix13 (talk): WP:SDNOTDEF) Tags: Twinkle Undo Reverted
diffhist Kernel (algebra) 01:01 +17 Gramix13 talk contribs (Made short description be more broad than merely mentioning 0.) Tag: Reverted
diffhist Kernel (algebra) 00:39 +3 Gramix13 talk contribs (Expanded definition of module homomorphism to mention abelian groups.)
diffhist Kernel (algebra) 00:33 +25 Gramix13 talk contribs (Added citations.)
diffhist Kernel (algebra) 00:26 −370 Gramix13 talk contribs (Reworked examples of linear maps.)
diffhist Kernel (algebra) 00:14 −618 Gramix13 talk contribs (Removed history section that was too short to be a proper section.)
diffhist Kernel (algebra) 00:11 −43 Gramix13 talk contribs (Removed additional citations cleanup tag; only one section needs sourcing.)
diffhist Kernel (algebra) 00:11 −2,510 Gramix13 talk contribs (Removed mentions of monoid kernels and kernels of non-algebraic structures due to being unverified.)
diffhist Kernel (algebra) 00:08 −6 Gramix13 talk contribs (→Linear maps: removed "often")
diffhist Kernel (algebra) 00:07 −3 Gramix13 talk contribs (Rewrote lead to remove "sometimes")
diffhist Kernel (algebra) 00:02 −237 Gramix13 talk contribs (Moved kernel of a function link to see also section.)

20 May 2025

diffhist Kernel (algebra) 23:58 −6 Gramix13 talk contribs (→Group homomorphisms: removed "indeed")
diffhist m Kernel (algebra) 23:55 +4 Gramix13 talk contribs (→Linear maps: fixed grammer.)
diffhist Kernel (algebra) 23:45 −245 Gramix13 talk contribs (Removed unused citation.)
diffhist Kernel (algebra) 23:35 −352 Gramix13 talk contribs (Removed section on kernels in category theory.)
diffhist Kernel (algebra) 23:19 +100 Gramix13 talk contribs (Added citations to lead.)
diffhist m Kernel (algebra) 22:23 +8 Gramix13 talk contribs (added "contain")
diffhist Kernel (algebra) 22:20 +49 Gramix13 talk contribs (Rewritten lead.)
diffhist Kernel (algebra) 22:01 +22 Gramix13 talk contribs (Added other uses tag.) Tag: Disambiguation links added
diffhist m Wreath product 21:33 −486 Barçaforlife talk contribs (→Examples)
diffhist Template:Absolute value 21:18 −1 Quondum talk contribs (Undid my last edit: nope, better to us {{itco}} to deal with this) Tag: Undo
diffhist m Cyclic group 21:17 −175 Barçaforlife talk contribs (Added LaTeX)
diffhist m Wreath product 20:54 +9 Barçaforlife talk contribs (→Universal embedding theorem)
diffhist m Wreath product 20:53 +23 Barçaforlife talk contribs (→Cardinality)
diffhist m Wreath product 20:52 +6 Barçaforlife talk contribs (→Subgroup)
diffhist m Wreath product 20:51 +65 Barçaforlife talk contribs (→Agreement of unrestricted and restricted wreath product on finite Ω)
diffhist m Wreath product 20:49 −139 Barçaforlife talk contribs (→Notation and conventions)

19 May 2025

diffhist Template:Absolute value 15:18 +1 Quondum talk contribs (compromise for italic contents (often colliding with right vertical bar)) Tag: Reverted
diffhist Elementary abelian group 12:15 +6 Jochen Burghardt talk contribs (→top: now redirects to here)
diffhist m Sliding puzzle 04:39 −123 Users123tps talk contribs (→References: Replace legacy patent URLs with newer DB URLs.) Tag: Visual edit