# Axiom of parallels – Definition & Meaning

Conclusion

The axiom of parallels is a fundamental concept in mathematics that deals with the properties of parallel lines. It is a principle that states that if two straight lines are intersected by a third line and the interior angles on one side of the third line add up to less than 180 degrees, then the two straight lines will eventually intersect. In this article, we will explore the definition, meaning, origin, and associations of the axiom of parallels.

## Definitions

The axiom of parallels is a statement that is assumed to be true without proof. It is also known as the parallel postulate. The statement can be defined as follows: “Given a line and a point not on the line, there is exactly one line through the point that does not intersect the given line.”

## Origin

The axiom of parallels has a long and complicated history. It was first stated by Euclid in his book “Elements” around 300 BC. However, the axiom was not universally accepted until the 19th century when mathematicians began to question its validity. The debate over the axiom of parallels led to the development of non-Euclidean geometries, which challenged the traditional assumptions of Euclidean geometry.

## Meaning in different dictionaries

The axiom of parallels is defined in various dictionaries as a principle that states that parallel lines never meet. It is also described as a fundamental postulate of Euclidean geometry that is used to prove theorems about parallel lines and angles.

## Associations

The axiom of parallels is associated with the properties of parallel lines, angles, and planes. It is also associated with the concept of distance and the geometry of space.

## Synonyms

The synonyms of the axiom of parallels include the parallel postulate, Euclid’s fifth postulate, and the parallel axiom.

## Antonyms

There are no antonyms of the axiom of parallels.

## The same root words

The same root words of the axiom of parallels include axiomatic, axiom, parallel, and postulate.

## Example Sentences

1. The axiom of parallels is a fundamental principle of Euclidean geometry.
2. The parallel postulate is another name for the axiom of parallels.
3. The axiom of parallels is used to prove theorems about parallel lines and angles.

In conclusion, the axiom of parallels is a fundamental principle of Euclidean geometry that deals with the properties of parallel lines. It is a statement that is assumed to be true without proof and is used to prove theorems about parallel lines and angles. The axiom has a long and complicated history, and its validity has been debated for centuries. Despite this, it remains a crucial concept in mathematics and is essential for understanding the properties of space and geometry.