Hacker News new | ask | show | jobs
by tux3 93 days ago
0.1 is of course a real number, but let A \in R the set of actual numbers... (/s)
3 comments

The funny thing is, according to infinitists real numbers are not real. But I do like the concept of the set of actual numbers.
I don't know whether I'm an infinitist, but I personally think "real numbers" is the most ingenious marketing term created by mathematicians...
\infty is an actual number not in R
Should be \subset.