Comment Comment by ben_w Fun fact I realised only recently: 2 ∘ 2 = 4 for any operator ∘ in the Ackermann sequence other than the zeroth (successor) operator.2+2 = 2×2 = 2² = … = 4At least, unless I messed up my proof. My highest qualification is two A-levels in maths and half of brilliant.org…https://kitsunesoftware.wordpress.com/2020/07/27/hᵤ2-2-4-for... parent ben_w 6 years ago
2+2 = 2×2 = 2² = … = 4
At least, unless I messed up my proof. My highest qualification is two A-levels in maths and half of brilliant.org…
https://kitsunesoftware.wordpress.com/2020/07/27/hᵤ2-2-4-for...