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- What is the meaning of ⊊? - Mathematics Stack Exchange
I have encountered this when referencing subsets and vector subspaces For example, T ⊊ span(S) should mean that T is smaller than span(S)--at least from what I've gathered Is ⊊ a sort of ≤ or lt
- notation - What does := mean? - Mathematics Stack Exchange
Other symbols I have seen used for "is defined to be equal to" are three horizontal lines instead of two, and $=$ with either a triangle or "def" written directly above it I have seen variants of these used by people who predate widespread knowledge of computer programming It would be interesting to know the earliest uses of a special symbol for this (and what symbols were chosen) An
- notation - what does ≼ or ≺ mean? - Mathematics Stack Exchange
I was reading a paper about well-orderings and this came up: Suppose (E, ≤) and (F, ≼) are isomorphic well-orderings Then there exists a unique isomorphism for (E, ≤) to (F, ≼) I've been scouri
- Three dot ∴ symbol meaning - Mathematics Stack Exchange
Whats the meaning of this symbol? Its a three dot symbol: ∴ I read a book, im could not find any definition of this symbol This is about continuum property of the natural numbers and the archimed
- The meaning of various equality symbols - Mathematics Stack Exchange
The meaning of various equality symbols Ask Question Asked 10 years, 6 months ago Modified 9 years, 7 months ago
- Much less than, what does that mean? - Mathematics Stack Exchange
What exactly does $\\ll$ mean? I am familiar that this symbol means much less than but what exactly does "much less than" mean? (Or the corollary, $\\gg$) On Wikipedia, the example they use i
- inequality - What does lt; gt; mean? - Mathematics Stack Exchange
What do the less-than and greater-than symbols right next to each other mean? Does it mean either less than or greater than? In other words, not equal? I am trying to understand a book that says th
- What is the meaning of the double turnstile symbol ($\models$)?
In summary: The interplay of meaning and axiomatic machine mathematics, captured by the difference between $\models$ and $\vdash$, is a subtle and interesting thing
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