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	<title>Symbols - Revision history</title>
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	<updated>2026-04-24T15:24:28Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.johnsenner.com/index.php?title=Symbols&amp;diff=80&amp;oldid=prev</id>
		<title>John: /* Mathematics: A Universal Language */</title>
		<link rel="alternate" type="text/html" href="https://www.johnsenner.com/index.php?title=Symbols&amp;diff=80&amp;oldid=prev"/>
		<updated>2024-05-16T07:52:15Z</updated>

		<summary type="html">&lt;p&gt;&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Mathematics: A Universal Language&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 07:52, 16 May 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot; &gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mathematics, the study of totally constructed concepts like numbers, time, logic, and all that, is the closest thing we&amp;#039;ve got to a universal language. Highly intuitive symbols are included, if not universal, and here I&amp;#039;ll point out a few and critique them:&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mathematics, the study of totally constructed concepts like numbers, time, logic, and all that, is the closest thing we&amp;#039;ve got to a universal language. Highly intuitive symbols are included, if not universal, and here I&amp;#039;ll point out a few and critique them:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;Square foot&amp;#039;&amp;#039;&amp;#039; – Exactly like it says on the box. Not that a foot is a good unit of measurement— a human foot is, of course, not a standard base for a system the way the size of our watery Earth is—but this symbol is excellent in its simplicity and expressiveness anyway.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;⏍ &lt;/ins&gt;Square foot&amp;#039;&amp;#039;&amp;#039; – Exactly like it says on the box. Not that a foot is a good unit of measurement— a human foot is, of course, not a standard base for a system the way the size of our watery Earth is—but this symbol is excellent in its simplicity and expressiveness anyway. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Plus did you know unicode even had this?&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;∠ Angle&amp;#039;&amp;#039;&amp;#039; – Very nice. Just a drawing of the referenced thing. Conveniently, this one is extensible - you can mark it up to show that you mean the measure or that your angle bisects another one, or what three points describe it.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;∠ Angle&amp;#039;&amp;#039;&amp;#039; – Very nice. Just a drawing of the referenced thing. Conveniently, this one is extensible - you can mark it up to show that you mean the measure or that your angle bisects another one, or what three points describe it.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;ƒ Function of&amp;#039;&amp;#039;&amp;#039; – Pretty daft as it&amp;#039;s just an initialization. At least it&amp;#039;s scripted, so you can tell it&amp;#039;s not just an F, I guess. This is precisely the kind of thing we should stay away from. A better symbol? ☡ would at least show the process of something undergoing a path, ⍆ shows a thing passing a threshold.&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;#039;&amp;#039;&amp;#039;ƒ Function of&amp;#039;&amp;#039;&amp;#039; – Pretty daft as it&amp;#039;s just an initialization. At least it&amp;#039;s scripted, so you can tell it&amp;#039;s not just an F, I guess. This is precisely the kind of thing we should stay away from. A better symbol? ☡ would at least show the process of something undergoing a path, ⍆ shows a thing passing a threshold.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>John</name></author>
		
	</entry>
	<entry>
		<id>https://www.johnsenner.com/index.php?title=Symbols&amp;diff=77&amp;oldid=prev</id>
		<title>John: Created page with &quot;== Mathematics: A Universal Language ==  Mathematics, the study of totally constructed concepts like numbers, time, logic, and all that, is the closest thing we&#039;ve got to a un...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.johnsenner.com/index.php?title=Symbols&amp;diff=77&amp;oldid=prev"/>
		<updated>2024-05-16T07:19:06Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;== Mathematics: A Universal Language ==  Mathematics, the study of totally constructed concepts like numbers, time, logic, and all that, is the closest thing we&amp;#039;ve got to a un...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== Mathematics: A Universal Language ==&lt;br /&gt;
&lt;br /&gt;
Mathematics, the study of totally constructed concepts like numbers, time, logic, and all that, is the closest thing we&amp;#039;ve got to a universal language. Highly intuitive symbols are included, if not universal, and here I&amp;#039;ll point out a few and critique them:&lt;br /&gt;
&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Square foot&amp;#039;&amp;#039;&amp;#039; – Exactly like it says on the box. Not that a foot is a good unit of measurement— a human foot is, of course, not a standard base for a system the way the size of our watery Earth is—but this symbol is excellent in its simplicity and expressiveness anyway.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;∠ Angle&amp;#039;&amp;#039;&amp;#039; – Very nice. Just a drawing of the referenced thing. Conveniently, this one is extensible - you can mark it up to show that you mean the measure or that your angle bisects another one, or what three points describe it.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;ƒ Function of&amp;#039;&amp;#039;&amp;#039; – Pretty daft as it&amp;#039;s just an initialization. At least it&amp;#039;s scripted, so you can tell it&amp;#039;s not just an F, I guess. This is precisely the kind of thing we should stay away from. A better symbol? ☡ would at least show the process of something undergoing a path, ⍆ shows a thing passing a threshold.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;∞ Infinity&amp;#039;&amp;#039;&amp;#039; – Well, I guess this one works. I&amp;#039;ve never been a huge fan of the &amp;#039;lazy eight&amp;#039;, as it in no way indicates to me an unlimited amount of anything. But as an enormously abstract concept, it&amp;#039;s not easy to symbolize without encoding, so this arbitrary, somewhat rationalizable symbol (it keeps going!) works well enough.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;Δ Delta&amp;#039;&amp;#039;&amp;#039; – Commonly indicating a change in something over time. Pragmatically, an arrow describing the path of the sun, phases of the moon, tides, plants, something like that would be better. However, I do think it&amp;#039;s great that, in English, a delta is a change in a river over time. A triangle-shaped change. Is this intuitive? No. But for being referential in form, it&amp;#039;s way better than &amp;#039;Function of&amp;#039;.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;¬ Not&amp;#039;&amp;#039;&amp;#039; – One of the absolute simplest, and best. One has taken the straight tally representing &amp;#039;a thing&amp;#039;, and broken it in just such a way that negates it in form, function, and concept. One of the most intuitive, least encoded symbols we have.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;∧ And&amp;#039;&amp;#039;&amp;#039; – Shows the logical joining of two concepts into a higher, compound version. + is still useful as it shows two tallies in combination, but rather than depicting them together, a∧b is clearly the union between. While it&amp;#039;s not as intuitive as +, we at least have a demonstrative picture of a joining, more indicative of the idea that &amp;#039;both of these are required&amp;#039;.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;∨ Or&amp;#039;&amp;#039;&amp;#039; – Another logical operator, used as a∨b. The deficit of this and ∧ is that, while they&amp;#039;re wonderful in their logical inversion of one another, they are not referential of anything, and require some prior knowledge of their meaning. Good, but not perfect.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;∅ Null&amp;#039;&amp;#039;&amp;#039; – A very difficult concept to represent in mathematics: a group of nothing. I&amp;#039;m very pleased with this one, which is so intuitive that it&amp;#039;s more often reddened and superimposed on another symbol to show that it is not allowed. What a fantastic and practical use! Another, even more definite success where symbols are concerned.&lt;br /&gt;
* &amp;#039;&amp;#039;&amp;#039;∴ Therefore&amp;#039;&amp;#039;&amp;#039; – Here&amp;#039;s another terrific one. While not immediately intuitive, &amp;#039;therefore&amp;#039; is an abstract concept. But if abstract concepts were shaped like dots, this symbol would show two of them with a third built on top, perfect units of reasoning being built on one another. Genius.&lt;/div&gt;</summary>
		<author><name>John</name></author>
		
	</entry>
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