Antinumeric

10 ms·

1. 1.▲
   by Antinumeric 11mo ago

   (non-mathematical) Implication doesn't mean certainty, which is where I stand with that. But I would posit that it (mathematically) implies that joining two knots with under to over will never decrease the unknotting number from the
2. 2.▲
   by Antinumeric 11mo ago

   I'm not saying I could have come up with the example. I'm saying looking at the example, and seeing how the two unders are connected togther, and the two overs connected together, makes it obvious that there is more freedom to mov
3. 3.▲
   by Antinumeric 11mo ago

   This example seems obvious to me - Joining the under to the under, and the over to the over would obviously give more freedom to the knot than the reverse.