Tbf, when this post was first made, the article was not linked and instead it was just a link to the picture. So... this is one time that not reading it made sense!:-P
Not aware of any specific usages, but maybe they're used as meta-sets. e.g. "consider a set of numbers 𝕏 and a set of numbers 𝕐 ... etc, which can't be done with the defined letters.
Unicode originally only had the double-struck letters for the defined sets ℂ, ℍ, ℕ, ℙ, ℚ, ℝ and ℤ, but the full alphabets were later added at higher code-points with "reserved" gaps where the defined seven letters would otherwise appear.
(Complex, Hamiltonian quaternions, Natural, Prime, Quotient (rational), Real and Zahlen, a German word for counting numbers, for anyone wondering.
Quick edit: Zahl is cognate with English "tell" and "tale" which are both related to "tally", believe it or not. "Recounting a tale" didn't used to mean telling(!) a story, but instead literally checking a previous count, and developed the wider sense later.
Also, ℍ not getting "ℚ" because ℚ couldn't have "ℝ" is kind of funny.).
16 Comments
SnotFlickerman@lemmy.blahaj.zone · 18 pts · 2y
Your link is just to a picture, not to an article.
AbidanYre@lemmy.world · 27 pts · 2y
It is concise though. You gotta give him that.
fahfahfahfah@lemmy.billiam.net · 7 pts · 2y
yet it's still getting upvotes
OpenStars@discuss.online · 14 pts · 2y
sugar_in_your_tea@sh.itjust.works · 2 pts · 2y
Nobody reads the article.😉
OpenStars@discuss.online · 2 pts · 2y
Tbf, when this post was first made, the article was not linked and instead it was just a link to the picture. So... this is one time that not reading it made sense!:-P
SpaceNoodle@lemmy.world · 4 pts · 2y
Not any more
MrJameGumb@lemmy.world · 1 pts · 2y
It's at -7 right now lol
XopherH@lemmy.world · 5 pts · 2y
My bad. Still getting Lemmy down.
TootSweet@lemmy.world · 7 pts · 2y
If ℕ is natural numbers and ℚ is rational numbers and ℤ is integers and ℝ is the rational numbers, what are 𝕏 and 𝕐?
palordrolap@kbin.social · 6 pts · 2y
Not aware of any specific usages, but maybe they're used as meta-sets. e.g. "consider a set of numbers 𝕏 and a set of numbers 𝕐 ... etc, which can't be done with the defined letters.
Unicode originally only had the double-struck letters for the defined sets ℂ, ℍ, ℕ, ℙ, ℚ, ℝ and ℤ, but the full alphabets were later added at higher code-points with "reserved" gaps where the defined seven letters would otherwise appear.
(Complex, Hamiltonian quaternions, Natural, Prime, Quotient (rational), Real and Zahlen, a German word for counting numbers, for anyone wondering.
Quick edit: Zahl is cognate with English "tell" and "tale" which are both related to "tally", believe it or not. "Recounting a tale" didn't used to mean telling(!) a story, but instead literally checking a previous count, and developed the wider sense later.
Also, ℍ not getting "ℚ" because ℚ couldn't have "ℝ" is kind of funny.).
TheFonz@lemmy.world · 5 pts · 2y
Shouldn't it be sans serif though? Low effort.
MrJameGumb@lemmy.world · 4 pts · 2y
So... Do you care to explain further or should we just sign up based on this static image you posted?
XopherH@lemmy.world · 3 pts · 2y
My bad. Have restored the link.
OpenStars@discuss.online · 2 pts · 2y
A related article that I found so interesting I could barely put it down, and helped convince me to leave Reddit and come here instead: https://medium.com/@max.p.schlienger/the-cargo-cult-of-the-ennui-engine-890c541cebcb.
l3ycle@feddit.de · 1 pts · 2y
\mathbb{} ultras