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, …

Nov 27, 2022 · I just joined and need help understanding what all the different profile colors and symbols on the map. Is there a list of meanings on the site?

What's the most used symbol for "defined to be equal to", at least in your experience (and I'm sure there are a lot of experienced people here)? Also, which one do you think is the "the most right" of them, in …

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 …

Sep 15, 2022 · Can anyone tell me what this symbol is indicating? Add a Comment Sort by: Search Comments

Possible Duplicate: What is the purpose of the ∓ ∓ symbol in mathematical usage? Just as the title explains. I've seen my professor actually differentiating between those two. Do they not mean the …

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 just came across this annotation in my school's maths compendium: The compendium is very brief and doesn't explain what this means.

Feb 10, 2013 · Title says it all (I think). I'm betting it's something to do with Standard Integrals though. What is this symbol "$\\int$" called?

Counter-intuitively, the negative in that “plus or minus” symbol, is to acknowledge that x could represent a negative value, in which case, we’d need the negative of that negative value to arrive at a “square …