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Thread / Thread Starter	Last Post	Replies	Views
Is (1 + 1 + 1 + 1 + 1 + 1 + ...) less than (1 + 2 + 3 + 4 + 5 + 6 + ...) ? ( 1 2 3) retina	2022-05-21 01:26 by retina	27	12,380
Python inf & nan complexity ( 1 2) retina	2022-05-14 21:04 by axeltherabbit	21	1,177
The tripling-halving reduction game MooMoo2	2022-05-14 03:28 by LaurV	3	731
May 2022 Max0526	2022-05-12 07:03 by SmartMersenne	9	791
April 2022 Xyzzy	2022-04-04 07:55 by tgan	5	1,236
February 2022 ( 1 2) tgan	2022-03-23 21:59 by slandrum	21	2,986
March 2022 Xyzzy	2022-03-21 10:45 by Kebbaj	7	1,398
Penn & Teller Fool Us, S08 E09 ( 1 2) fatphil	2022-02-24 09:35 by fatphil	13	1,303
Simultaneously Square Sums of Mostly Squares ( 1 2) fatphil	2022-02-21 23:28 by fatphil	14	1,204
Primes in order in pi ( 1 2) robert44444uk	2022-02-16 16:53 by robert44444uk	17	1,560
January 2022 ( 1 2 3) Xyzzy	2022-02-14 01:08 by Yusuf	25	3,346
Ant on a rubber band. ( 1 2 3) petrw1	2022-02-01 16:05 by uau	22	1,111
hand puzzles MattcAnderson	2022-01-27 13:31 by rogue	10	2,193
December 2021 Xyzzy	2021-12-08 14:32 by tgan	5	2,125
Where Transcendental Numbers Hide in Everyday Math Xyzzy	2021-11-26 16:56 by Xyzzy	4	1,163
The Square-Sum problem ( 1 2 3) henryzz	2021-11-15 15:12 by R. Gerbicz	31	17,741
November 2021 Xyzzy	2021-11-01 18:46 by Xyzzy	0	511
Сipher text ( 1 2 3 4) greenskull	2021-10-17 03:56 by SmartMersenne	43	4,119
October 2021 Xyzzy	2021-10-08 15:24 by Dieter	3	921
September 2021 ( 1 2) Xyzzy	2021-10-06 00:52 by SmartMersenne	20	4,776
Proper factorization known, no prime factors known Dr Sardonicus	2021-09-27 16:56 by Dr Sardonicus	2	944
Farmer Fred's funky field ( 1 2 3 4 5 ... Last Page) MattcAnderson	2021-09-06 23:58 by PhilF	58	5,029
August 2021 tgan	2021-09-06 11:24 by uau	3	1,243
Coset conundrum Dr Sardonicus	2021-08-29 13:26 by Dr Sardonicus	2	811
Primes in π ( 1 2 3 4 5 ... Last Page) davar55	2021-08-21 12:19 by LaurV	218	63,744

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∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
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