List concatenation monoid.
You can think of this as a Sparse vector group
You can think of this as a Sparse vector monoid
You can think of this as a Sparse vector ring
Monoid (take a deep breath, and relax about the weird name): This is a class that has an additive identify (called zero), and plus method that is associative: a+(b+c) = (a+b)+c and a+0=a, 0+a=a
Set union monoid.
Combine 10 groups into a product group
Combine 10 monoids into a product monoid
Combine 10 rings into a product ring
Combine 11 groups into a product group
Combine 11 monoids into a product monoid
Combine 11 rings into a product ring
Combine 12 groups into a product group
Combine 12 monoids into a product monoid
Combine 12 rings into a product ring
Combine 13 groups into a product group
Combine 13 monoids into a product monoid
Combine 13 rings into a product ring
Combine 14 groups into a product group
Combine 14 monoids into a product monoid
Combine 14 rings into a product ring
Combine 15 groups into a product group
Combine 15 monoids into a product monoid
Combine 15 rings into a product ring
Combine 16 groups into a product group
Combine 16 monoids into a product monoid
Combine 16 rings into a product ring
Combine 17 groups into a product group
Combine 17 monoids into a product monoid
Combine 17 rings into a product ring
Combine 18 groups into a product group
Combine 18 monoids into a product monoid
Combine 18 rings into a product ring
Combine 19 groups into a product group
Combine 19 monoids into a product monoid
Combine 19 rings into a product ring
Combine 20 groups into a product group
Combine 20 monoids into a product monoid
Combine 20 rings into a product ring
Combine 21 groups into a product group
Combine 21 monoids into a product monoid
Combine 21 rings into a product ring
Combine 22 groups into a product group
Combine 22 monoids into a product monoid
Combine 22 rings into a product ring
Combine two groups into a product group
Combine two monoids into a product monoid
Combine two rings into a product ring
Combine 3 groups into a product group
Combine 3 monoids into a product monoid
Combine 3 rings into a product ring
Combine 4 groups into a product group
Combine 4 monoids into a product monoid
Combine 4 rings into a product ring
Combine 5 groups into a product group
Combine 5 monoids into a product monoid
Combine 5 rings into a product ring
Combine 6 groups into a product group
Combine 6 monoids into a product monoid
Combine 6 rings into a product ring
Combine 7 groups into a product group
Combine 7 monoids into a product monoid
Combine 7 rings into a product ring
Combine 8 groups into a product group
Combine 8 monoids into a product monoid
Combine 8 rings into a product ring
Combine 9 groups into a product group
Combine 9 monoids into a product monoid
Combine 9 rings into a product ring