1️⃣ Define a Metric Space: Represent data as points in a complete metric space with a well-defined distance function. 2️⃣ Identify a Contraction Mapping: Explore potential mappings that satisfy the ...

This repository contains a Lean formalisation of the Banach Fixed Point Theorem (also known as the Contraction Mapping Theorem), a fundamental result in metric space theory. The theorem guarantees the ...