RT @Rainmaker1973: This lock can be opened with 1 lock: no matter which one. It's a real life example of a brunnian link, a nontrivial li… 0 atbildes
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Kaspars Foigts (2022-12-01 17:27:20) |
RT @Rainmaker1973: This lock can be opened with 1 lock: no matter which one. It's a real life example of a brunnian link, a nontrivial li… | |