Ringoid
A ringoid 
is a set 
with two binary operators, conventionally denoted addition (
) and multiplication (
),where distributes over left and right:
A ringoid can be empty.See also Binary Operator, Ring, Semiring
References
Rosenfeld, A. An Introduction to Algebraic Structures. New York: Holden-Day, 1968.
- Transpose
- Transpose Map
- Transposition
- Transposition Group
- Transposition Order
- Transversal Array
- Transversal Design
- Transversal Line
- Transylvania Lottery
- Trapdoor Function
- Trapezium
- Trapezohedron
- Trapezoid
- Trapezoidal Hexecontahedron
- Trapezoidal Icositetrahedron
- Trapezoidal Rule
- Traveling Salesman Constants
- Traveling Salesman Problem
- Trawler Problem
- Trebly Magic Square
- Tredecillion
- Tree
- Tree-Planting Problem
- Tree Searching
- Trefoil Curve