📁 几何学
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条目 (20+)
NASA Space Place: Fall into a Black Hole!
https://spaceplace.nasa.gov/black-hole-boardgame/en/
On Computable Numbers with an Application to the Entscheidungsproblem
http://www.abelard.org/turpap2/turpap2.htm
Kenny's Overview of Hofstadter's Explanation of Gödel's Theorem
http://www.ncsu.edu/felder-public/kenny/papers/godel.html