Equivalent
If 
and 
(i.e, 
, where 
denotes Implies), then 
and 
are said to be equivalent, a relationship which is written symbolically as 
or 
. However, if and are ``equivalent by definition'' (i.e., is Defined to be ), this is written 
, a notation which conflicts with that for a Congruence.
- Ear
- Early Election Results
- Eban Number
- Eberhart's Conjecture
- Eccentric
- Eccentric Angle
- Eccentric Anomaly
- Eccentricity
- Eccentricity (Graph)
- Echidnahedron
- Eckardt Point
- Eckert IV Projection
- Eckert VI Projection
- Economized Rational Approximation
- Eddington Number
- Edge-Coloring
- Edge Connectivity
- Edge (Graph)
- Edge Number
- Edge (Polygon)
- Edge (Polyhedron)
- Edge (Polytope)
- Edgeworth Series
- e-Divisor
- Edmonds' Map