Pi is irrational (π∉ℚ)
26:14
Do we even need the real numbers??
16:29
A proof that e is irrational - Numberphile
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Facebook labels Linux as a "cybersecurity threat"
21:21
A nice integral.
21:20
e is irrational -- the best proof!!
23:20
Pi is IRRATIONAL: animation of a gorgeous proof
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Fields Medal winner Cedric Villani explains the many mysteries of Pi • RFI English
24:20