the point of communication between two neurons-includes axon terminal of the sending neuron, the synaptic space (gap), and dendrites/cell body of the receiving neuron
There are two approaches to cardinality â one which compares sets directly using bijections and injections, and another which uses cardinal numbers. The cardinality of a set is also called its size, when no confusion with other notions of size is possible.
duality - (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry. math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement.