The Mathematical Symbol "Precedes But Not Equivalent To (⋨)"

The "Precedes But Not Equivalent To" Symbol (⋨): Order without Equivalence

Mathematics, as a field, is deeply rooted in the symbols it employs to convey complex concepts. One such notation is the ⋨ symbol, which is defined as "Precedes But Not Equivalent To". Predominantly used in order theory and certain algebraic structures, this symbol indicates a specific order relation between two elements.

Unraveling the ⋨ Symbol

In the realm of order theory, it's crucial to understand the relations and hierarchies between different elements. The ⋨ symbol encapsulates a unique relationship: it denotes that one element precedes another, but they are not equivalent or equal.

Example 1: Set Relations

Consider two sets \(A\) and \(B\) in a set system. If \(A\) is a proper subset of \(B\), but they aren't equal, we can write \(A ⋨ B\).

Example 2: Algebraic Structures

In some algebraic systems, certain elements may have a hierarchical relation without being equivalent. If element \(x\) is less than element \(y\) but not equivalent to it, this can be depicted as \(x ⋨ y\).

Fields of Application for the ⋨ Symbol

The versatility of ⋨ spans across different mathematical domains:

  • Order Theory: To represent non-equivalent ordering of elements or sets.
  • Algebra: Within specific structures to indicate an element's position relative to another without asserting equivalence.
  • Mathematical Logic: To define non-equivalent propositions or statements.

By offering a concise way to express intricate relations, the ⋨ symbol contributes immensely to mathematical clarity and precision.

In summary, the ⋨ symbol holds vital importance in describing unique order relations that exist without equivalence. Through this notation, mathematicians and researchers can efficiently convey nuanced relationships between elements in various domains.

Mathematical symbol 'Precedes But Not Equivalent To'

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Codes for the ⋨ Symbol

The Symbol
Alt CodeAlt 8936
HTML Code⋨
HTML Entity⋨
CSS Code\22E8
Hex Code⋨

How To Insert the ⋨ Symbol

(Method 1) Copy and paste the symbol.

The easiest way to get the ⋨ symbol is to copy and paste it into your document.

Bear in mind that this is a UTF-8 encoded character. It must be encoded as UTF-8 at all stages (copying, replacing, editing, pasting), otherwise it will render as random characters or the dreaded �.

(Method 2) Use the "Alt Code."

If you have a keyboard with a numeric pad, you can use this method. Simply hold down the Alt key and type 8936. When you lift the Alt key, the symbol appears. ("Num Lock" must be on.)

(Method 3) Use the HTML Decimal Code (for webpages).

HTML TextOutput
<b>My symbol: &#8936;</b>My symbol: ⋨

(Method 4) Use the HTML Entity Code (for webpages).

HTML TextOutput
<b>My symbol: &prnsim;</b>My symbol: ⋨

(Method 5) Use the CSS Code (for webpages).

CSS and HTML TextOutput
span:after {
content: "\22E8";}
<span>My symbol:</span>
My symbol: ⋨

(Method 6) Use the HTML Hex Code (for webpages and HTML canvas).

HTML TextOutput
<b>My symbol: &#x22E8;</b>My symbol: ⋨
On the assumption that you already have your canvas and the context set up, use the Hex code in the format 0x22E8 to place the ⋨ symbol on your canvas. For example:
JavaScript Text
const x = "0x"+"E9"
ctx.fillText(String.fromCodePoint(x), 5, 5);

(Method 7) Use the Unicode (for various, e.g. Microsoft Office, JavaScript, Perl).

The Unicode for ⋨ is U+22E8. The important part is the hexadecimal number after the U+, which is used in various formats. For example, in Microsoft Office applications (e.g. Word, PowerPoint), do the following:
[Hold down Alt]
[Press x]

(The 22E8 turns into ⋨. Note that you can omit any leading zeros.)
In JavaScript, the syntax is \uXXXX. So, our example would be \u22E8. (Note that the format is 4 hexadecimal characters.)
JavaScript TextOutput
let str = "\u22E8"
document.write("My symbol: " + str)
My symbol: ⋨