British mathematician and philosopher Bertrand Russell died #OTD in 1970. He was one of the early 20th century's most prominent logicians and a founder of analytic philosophy, along with his predecessor Gottlob Frege, his friend and colleague G. E. Moore, and his student and protégé Ludwig Wittgenstein. Together with his former teacher A. N. Whitehead, Russell wrote Principia Mathematica. via @wikipedia
Bertrand Russell at PG:
https://www.gutenberg.org/ebooks/author/355
"The nature of infinity & continuity, for example, belonged in former days to philosophy, but belongs now to mathematics. Mathematical philosophy, in the strict sense, cannot, perhaps, be held to include such definite scientific results as have been obtained in this region; the philosophy of mathematics will naturally be expected to deal with questions on the frontier of knowledge, as to which comparative certainty is not yet attained."
Introduction to Mathematical Philosophy
~Bertrand Russell
@gutenberg_org @wikipedia Russell is probably best known for his "Barber paradox": If a barber shaves those (and olny those) that do not shave themselves, then does the barber shave himself?
https://en.wikipedia.org/wiki/Russell%27s_paradox?wprov=sfla1
@gutenberg_org @wikipedia I mostly remember he wrote 200 pages trying to prove 1+1=2 and failed.
@gutenberg_org @wikipedia “Never ask a man his salary, a woman her age, or Betrand Russell why 1 + 1 = 2” 🤣
@gutenberg_org @wikipedia
#TIL Russel got put in prison for voicing his political views, and said
"I found prison in many ways quite agreeable. I had no engagements, no difficult decisions to make, no fear of callers, no interruptions to my work.
... I was rather interested in my fellow-prisoners, who seemed to me in no way morally inferior to the rest of the population, though they were on the whole slightly below the usual level of intelligence as was shown by their having been caught."
