Text #3640570

Property (c) is known as countable additivity. It is not something that can be proved, but it is like an assumption or an axiom. In our experience, we have seen that operating as if the assumption is correct leads to useful and credible answers to many problems, so we accept it as a reasonable assumption. Not all probabilists agree that countable additivity is natural.

—from Fundamentals of Probability: A First Course, a book by Anirban DasGupta

Active since July 25, 2017.
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Leaders

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Rank Username WPM Accuracy Date
5430. Mark (marklwembe) 47.54 95% 2020-11-14
5431. nyet (slickman) 47.50 94% 2020-06-30
5432. rebira (rebira) 47.49 94% 2020-03-07
5433. sk (beast_mode7) 47.47 97% 2020-10-27
5434. Marcus (boopbeepboopboop) 47.46 94% 2020-09-11
5435. Abu Shaikh (abunibir) 47.46 95% 2020-04-30
5436. SolTrain (soltrain) 47.46 95% 2020-01-15
5437. tang (tangngng) 47.45 96% 2017-10-15
5438. Dev (devsaluja15) 47.44 93% 2019-09-28
5439. Dukenbergs (techinologic) 47.42 97% 2018-04-07
5440. Deepak (deepakkanpur) 47.42 97% 2019-11-09
5441. Arpan (arpan22) 47.40 95% 2018-01-05
5442. Sidharth (iamsidman17) 47.38 93% 2020-04-09
5443. Nick (exray12) 47.37 92% 2020-10-20
5444. Andre (exdeeeeeeee) 47.36 95% 2018-04-03
5445. Hailey (haleedong) 47.35 93% 2018-05-14
5446. Rishi_ (upsehu) 47.34 97% 2018-02-03
5447. Yu T (chanzzes2366) 47.31 95% 2020-11-06
5448. Ryan (itsdarhino) 47.25 95% 2019-05-06
5449. Curse (curse10) 47.23 97% 2020-08-24
5450. R1ng (r1ng) 47.21 96% 2018-01-15
5451. Georg (geha) 47.19 95% 2018-07-19
5452. Reimo (reimo) 47.11 91% 2019-06-11
5453. michael (mikeyp124) 47.08 95% 2018-12-17
5454. . (mioumioumiou) 47.07 96% 2020-08-17
5455. cooney (cooneywalker) 47.05 97% 2020-06-17
5456. Jon (phunboi) 47.05 96% 2020-11-06
5457. Guy (guyjariya) 47.02 93% 2020-03-11
5458. James (jfor8080) 46.98 98% 2019-09-20
5459. James (jamesdupont) 46.97 95% 2018-01-25

Universes

Universe Races Average WPM First Race
Default (English) 8,363 80.29 July 25, 2017
michaelderoche 4 121.42 December 16, 2020
Instant Death Mode 4 121.26 November 7, 2019
ᗜ Stenography 3 66.39 August 9, 2021