Lesson plan

Raph Levien

Raphael Linus Levien (also known as Raph Levien) is a software developer, a member of the free software developer community, through his creation of the Advogato virtual community and his work with the free software branch of Ghostscript. From 2007 until 2018, and from 2021 until 2025, he was employed at Google. He holds a PhD in computer science from UC Berkeley. He also made a computer-assisted proof system similar to Metamath: Ghilbert. In April 2016, Levien announced a text editor made as a "20% Project" (Google allows some employees to spend 20% of their working hours developing their own projects): Xi.

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Article summary

Raphael Linus Levien (also known as Raph Levien) is a software developer, a member of the free software developer community, through his creation of the Advogato virtual community and his work with the free software branch of Ghostscript. From 2007 until 2018, and from 2021 until 2025, he was employed at Google. He holds a PhD in computer science from UC Berkeley. He also made a computer-assisted proof system similar to Metamath: Ghilbert. In April 2016, Levien announced a text editor made as a "20% Project" (Google allows some employees to spend 20% of their working hours developing their own projects): Xi.

Key claims

  1. date of birth: 2004 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the date of birth is "2004". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1375492252

Key claims and bibliography are generated from the same tracked claims and sources as the article page.