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22:4422:44, 9 February 2025 diff hist +22‎ Equivalence relation ‎ Changed redirect target from Identity to Identity#Equivalence relations current Tags: Redirect target changed Visual edit
22:4322:43, 9 February 2025 diff hist +2‎ Identity ‎ →‎Equivalence relations Tag: Visual edit
22:4322:43, 9 February 2025 diff hist +22‎ N Equivalence relation ‎ Redirected page to Identity Tags: New redirect Visual edit
20:4220:42, 9 February 2025 diff hist +4,342‎ Identity ‎No edit summary Tag: Visual edit
19:3719:37, 9 February 2025 diff hist +1,106‎ N Identity ‎ Created page with "'''Identity''' is a primary, axiomatic concept. It refers to the "this"-ness of an object, the fact that it is this and not that. Mathematics conceptualizes identity using the equals ("=") symbol. == Equivalence relations == Things can be identical in some respects, but not others. Standard mathematics formalizes this idea as follows. Let <math>S</math> be a set. An ''equivalence relation'' is a relation <math>\sim </math> on <math>S</math> satisfying three axioms..." Tag: Visual edit

02:3202:32, 28 November 2024 diff hist +3,948‎ N On the Electrodynamics of Moving Bodies ‎ Created page with "In this article, I will explain Einstein's paper ''On the Electrodynamics of Moving Bodies''. My goal is not to do a historical investigation of exactly what Einstein thought. My goal is to justify special relativity == The problem == Einstein begins by noting the following problem: Maxwell's equations have a different interpretation in some reference frames than they do in others. He gives the following example, involving a magnet and a hoop of wire which are in mo..." current Tag: Visual edit

23:5023:50, 8 November 2024 diff hist +1,241‎ m Against models (essay) ‎No edit summary Tag: Visual edit
19:5819:58, 8 November 2024 diff hist +200‎ N Against models (essay) ‎ Created page with "In modern civilization, there are two perspectives on what science is. One perspective, which I will call the "identification perspective," is that the task of science is to identify facts of reality."
19:5519:55, 8 November 2024 diff hist +29‎ Main Page ‎No edit summary Tag: Visual edit

19:2619:26, 29 October 2024 diff hist +375‎ m Function ‎No edit summary Tag: Visual edit
04:1404:14, 29 October 2024 diff hist +1,780‎ N Perturbation theory ‎ Created page with "== Solution to an equation == An equation is a stipulation that two things are equal. Sometimes equations have free variables. In such a case, we can say that a ''solution'' to the equation is an assignment of specific values to its free variables, such that the equation holds true. There are three types of solutions that an equation might have. === 1. Exact solutions === To have an exact solution is a bit of a vague concept. Characteristics of "exact" solutions *..." current Tag: Visual edit
03:0203:02, 29 October 2024 diff hist +26‎ m Main Page ‎No edit summary Tag: Visual edit

21:4121:41, 15 October 2024 diff hist +3,400‎ N Uncertainty ‎ Created page with "== How do we measure continuous quantities? == First, set up some sort of "triangulation" of the space in which the continuous quantity can take values. For example, a ruler is a "triangulated" line. Typically some sort of quantitative system is chosen to keep track of the cells; e.g. for a ruler we count how many ticks there are. A measurement of a continuous quantity is simply an identification of which one of those intervals the continuous quantity lies inside. It's..." Tag: Visual edit
20:1120:11, 15 October 2024 diff hist +18‎ m Main Page ‎ →‎All Pages Tag: Visual edit

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