User contributions for InfernalAtom683

12:1712:17, 11 July 2026 diff hist 0 Template:Topology banner No edit summary
12:1512:15, 11 July 2026 diff hist −7 Template:Breadcrumb nav No edit summary current
12:1012:10, 11 July 2026 diff hist +896 N Template:Topology banner Created page with "<includeonly>{{Subject banner | theme = green | collapsed = {{{collapsed|}}} | kicker = This article belongs to | subject = Topology | articles = {{{articles|2,310}}} | description = {{{description|The study of spaces, continuity, and deformation}}} | portal = {{{portal|Portal:Topology}}} | button = {{{button|View portal}}} | breadcrumbs = {{{breadcrumbs|{{Breadcrumb nav|Mathepedia|Topology|General topology|Homeomorphism}}}}} | art-image = {{{ar..."
12:0912:09, 11 July 2026 diff hist +1,892 N Template:Subject banner Created page with "<includeonly><templatestyles src="Subject banner/styles.css" /> <div class="mp-subject-banner mp-subject-banner--{{{theme|green}}} mw-collapsible {{#ifeq:{{{collapsed|}}}|yes|mw-collapsed|}}"> <div class="mp-subject-banner__content"> <div class="mp-subject-banner__head"> <div class="mp-subject-banner__kicker">{{{kicker|This article belongs to}}}</div> <div class="mp-subject-banner__title-row"> <div class="mp-subject-banner__title">{{{subject|Sub..."
12:0912:09, 11 July 2026 diff hist −1,068 Template:Subject banner/styles.css No edit summary
12:0812:08, 11 July 2026 diff hist +1,317 N Template:Breadcrumb nav Created page with "<includeonly><templatestyles src="Breadcrumb nav/styles.css" /><nav class="mp-breadcrumb-nav" aria-label="{{{label|Breadcrumb}}}"> {{#if:{{{1|}}}|<span class="mp-breadcrumb-nav__item mp-breadcrumb-nav__item--root">{{{1}}}</span>}} {{#if:{{{2|}}}|<span class="mp-breadcrumb-nav__sep">›</span><span class="mp-breadcrumb-nav__item">{{{2}}}</span>}} {{#if:{{{3|}}}|<span class="mp-breadcrumb-nav__sep">›</span><span class="mp-breadcrumb-nav__item">{{{3}}}</span>}} {{..."
12:0812:08, 11 July 2026 diff hist +521 N Template:Breadcrumb nav/styles.css Created page with ".mp-breadcrumb-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; color: #f5fff8; font-size: 17px; line-height: 1.35; } .mp-breadcrumb-nav a { color: inherit; text-decoration: none; } .mp-breadcrumb-nav a:hover, .mp-breadcrumb-nav a:focus { text-decoration: underline; } .mp-breadcrumb-nav__item--root, .mp-breadcrumb-nav__item--root a { color: #d394ff; font-weight: 700; } .mp-breadcrumb-nav__sep { color: rgba(255, 255, 255,..."
12:0012:00, 11 July 2026 diff hist +4,814 N Template:Subject banner/styles.css Created page with ".mp-subject-banner { position: relative; overflow: hidden; box-sizing: border-box; min-height: 270px; padding: 28px 44px 24px; color: #fff; background: radial-gradient(circle at 74% 18%, rgba(118, 220, 168, 0.2), transparent 29%), linear-gradient(103deg, #00763f 0%, #006337 47%, #004626 100%); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; } .mp-subject-banner * { box-sizing: border-box; } .mp-subject-banner a { colo..."
10:1110:11, 11 July 2026 diff hist +4 m Hausdorff space No edit summary Tag: Visual edit
09:5509:55, 11 July 2026 diff hist −105 Homeomorphism No edit summary
09:4309:43, 11 July 2026 diff hist +13 Homeomorphism No edit summary

22:2622:26, 10 July 2026 diff hist −14 Homeomorphism No edit summary
16:1116:11, 10 July 2026 diff hist +7 Hausdorff space No edit summary
16:0916:09, 10 July 2026 diff hist −189 Hausdorff space No edit summary
11:2511:25, 10 July 2026 diff hist +17 Seifert-Van Kampen theorem No edit summary current
11:1711:17, 10 July 2026 diff hist −725 MediaWiki:Common.css No edit summary current Tag: Manual revert
11:1111:11, 10 July 2026 diff hist +725 MediaWiki:Common.css No edit summary Tag: Reverted

19:0619:06, 9 July 2026 diff hist +22 Homotopy No edit summary current Tag: Visual edit

22:0122:01, 29 June 2026 diff hist +5,578 Metric No edit summary current Tag: Visual edit

00:2200:22, 13 June 2026 diff hist +487 Metric No edit summary

20:0320:03, 12 June 2026 diff hist 0 Metric →Definitions
20:0220:02, 12 June 2026 diff hist 0 Metric →Properties
20:0220:02, 12 June 2026 diff hist 0 Metric →Properties
19:3919:39, 12 June 2026 diff hist +1,455 N Metric Created page with "In mathematics, a '''metric''' or '''distance function''' is a function that defines a rigorous concept of distance between each pair of elements in a given set. By generalizing the physical concept of distance, metrics allow mathematicians to define topological concepts such as open and closed sets, continuity, convergence, and limits in highly abstract spaces. A set equipped with a metric is called a metric sp..." Tag: Visual edit
19:2419:24, 12 June 2026 diff hist +445 Compact space No edit summary current Tag: Visual edit: Switched

22:5422:54, 11 June 2026 diff hist +2 Ring No edit summary current
22:5322:53, 11 June 2026 diff hist +806 N Ring Created page with "In ring theory, a **ring** is an algebraic sturcture consisting of a set with two binary operations. Integer equiped with addition and multiplication, polinomials, square matrices and functions are typical examples of rings. ==Definition== Suppose that <math>R</math> is a set and <math>+, \cdot\colon R\times R \to R</math> are two binary operations on <math>R</math>. The ordered triplet <math>(R,+,\cdot)</math> is a ring if it satisfies: # <math>(R,+)</math> is..." Tag: Visual edit

18:4718:47, 3 June 2026 diff hist −11 Template:Main Page/Header No edit summary current

18:5418:54, 14 May 2026 diff hist +14 Seifert-Van Kampen theorem No edit summary
18:5218:52, 14 May 2026 diff hist −44 Seifert-Van Kampen theorem No edit summary Tag: Visual edit: Switched
15:3715:37, 14 May 2026 diff hist +1,031 N Seifert-Van Kampen theorem Created page with "== Statement == Let <math>X</math> be a topological space, and <math>U, V\subset X</math> be open sets such that <math>X = U\cup V</math>, and <math>U</math>, <math>V</math> and <math>U\cap V</math> are path-connected. Take a basepoint <math>x_0\in U\cap V</math> with inclusion maps: <math display="block">i\colon U\cap V\hookrightarrow U,\quad j\colon U\cap V\hookrightarrow V,\quad k\colon U\hookrightarrow X,\quad l\colon V\hookrightarrow X,</math> then the following d..." Tag: Visual edit: Switched

21:5721:57, 29 April 2026 diff hist +4,305 N Commutator Created page with "A '''commutator''' is an algebraic expression that measures the failure of two elements to commute. It occurs throughout abstract algebra, particularly in group theory, ring theory, and linear algebra. If two elements commute, their commutator is trivial. More generally, the commutator describes the obstruction to exchanging the order of two operations. Commutators are fundamental in the study of noncommutative structures and in the construction of i..." current