Mar 18, 2011 · It's curious --and unfortunate-- that the symbol for emphasis became the symbol for negation. Granted, ASCII isn't the richest glyph set, and coders needed something, but why settle on …

The symbol ≅ is used for isomorphism of objects of a category, and in particular for isomorphism of categories (which are objects of CAT). The symbol ≃ is used for equivalence of categories. At least, …

Jun 25, 2014 · I have started seeing the "∈" symbol in math. What exactly does it mean? I have tried googling it but google takes the symbol out of the search.

Suppose (E, ≤) and (F, ≼) are isomorphic well-orderings. Then there exists a unique isomorphism for (E, ≤) to (F, ≼). I've been scouring the internet for what this symbol means. Someone said it means …

The symbol of a charging cable indicates that the watch battery is still low and requires charging. Try charging your watch again for at least 2.5 hours. When doing so, check that: All plastic wrap has …

Edit to add: your local manpower office has a way to show you all the office symbol codes (OSC) that are available for your unit type. That's in MPES. Possible that if you are in a brand new unit, there's a …

I agree about this symbol is not required if it is revolved part, it would more confusing if you have a single side set screw hole this will ruin the concept of symmetry.

Apr 20, 2016 · There is another arrow-symbol, which also used for mapping $\rightarrow$, which might be a bit confusing. The difference between two (as it is mentioned in the linked answer, as well as in …

A symbol previously used to represent Christ's redemption of the world. You can argue that last sentence. According to that, it's actually Christian imagery. Edit- here's a pretty interesting article …

The symbol $\mp$ only appears when there's already a $\pm$, but we want to establish a correspondence between opposite signs in an equation. Note that it's only a matter of style; we could …