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Homotopy theory is a branch of mathematics that deals with the study of continuous deformations of functions and spaces. In the context of topological spaces, homotopy theory focuses on understanding the fundamental properties of spaces that are preserved under continuous deformations.

One key application of homotopy theory in the study of topological spaces is in distinguishing between different types of spaces based on their fundamental group. The fundamental group is a topological invariant that captures information about the connectivity of a space. By using homotopy theory, mathematicians can determine when two spaces are equivalent in terms of their topological properties by studying the behavior of continuous deformations between them.

Overall, homotopy theory provides a powerful toolkit for analyzing and classifying topological spaces based on their fundamental properties and the continuous transformations that preserve these properties.
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by (438 points)
Homotopy theory is a branch of mathematics that studies continuous deformations of functions and spaces. In the context of topological spaces, homotopy theory allows us to understand the fundamental properties and relationships between different topological spaces. It helps in determining when two continuous maps between spaces can be continuously deformed into one another, which provides insight into the underlying structure and connectivity of the spaces. Homotopy theory is particularly useful in classifying topological spaces and studying their properties such as connectedness, compactness, and dimensionality.
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