Is your feature request related to a problem? Please describe.
I was confused by the introduction of notation I was not familiar with. One of the bullets has (R{0}, ·) is Abelian.
Describe the solution you'd like
Put a note as to what the R{0} means
Describe alternatives you've considered
N/A
Additional context
This confused me when trying to solve the first practice problem.
Is your feature request related to a problem? Please describe. I was confused by the introduction of notation I was not familiar with. One of the bullets has (R{0}, ·) is Abelian.
Describe the solution you'd like Put a note as to what the R{0} means
Describe alternatives you've considered N/A
Additional context This confused me when trying to solve the first practice problem.