Boolean ring
The power set ℘(X) is such a Boolean ring with symmetric difference, intersection, complement, 1 = X, and the Boolean algebra associated with it has operations union, intersection, and complement.
- abscissa
- absolute error
- absolute frequency
- absolute geometry
- absolutely continuous
- absolutely convergent series
- absolutely summable
- absolute value
- absorbing set
- absorbing state
- absorption laws
- abstract algebra
- abstraction
- abundant number
- acceleration
- acceleration–time graph
- acceptance region
- acceptance sampling
- accessibility
- accumulation point
- accuracy
- accurate (correct) to n decimal places
- accurate (correct) to n significant figures
- Acheson, David
- Achilles paradox