In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B...

Dec 22, 2020 · 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 …

Mar 3, 2019 · 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 …

What do lengths of time with the "bi" prefix mean"? I have understood bicentennial as once every two hundred years, but biannual as meaning twice a year. Do biweekly and bimonthly mean twice a week...

What is the meaning of wrt in the following text? I think this is an excellent idea, but I'd like to see this explicitly reframed under the banner of providing Drupal.org data through publicly-

These are not English words, but Greek (hyper) and Latin (super, ultra) prepositions. Hyper and super mean exactly the same thing, 'above' -- they're cognates, in fact; Greek initial S went to H, and Y was …

Feb 16, 2012 · Could you explain what is a difference between readable vs legible? Which should I use when I want to say "This diagram is easily readable/legible" while meaning - "It is very easy to read and

Is there any usage preference between artifact and artefact? My understanding was that an artifact was properly applied to physical, historical objects, while an artefact was more correct for more

Jul 22, 2016 · Qua (not to be confused with the ablative feminine form of qui) is a Latin adverb meaning "where; by which route". Read it as "as" when you read it. Use it in scholarly or legal writing to refer …

Aug 15, 2010 · In Australian English there has always been a distinction between "pissed" (intoxicated) and "pissed off" (angry, irritated). I've noticed a trend towards the American usage where "he was …