There are two basic types of abstraction: linguistic and mathematical. Linguistic abstraction are definitions. Mathematical abstraction are mathematical entities: numbers, figures and magnitudes.
Examples of magnitudes are:
1- When weighing three objects of different shapes, sizes and materials have a mass of 7 kg each.
2- The length of three different objects is 12 cm each.
3- The duration of three events of different rhythms is 1 hour each.
The more we repeat the measurements, better and more accurate are the abstractions we handle.
Elvis Sibilia
