Now I know how the fundamental group of a Simplicial Complex is defined, as well as that of a Toplogical Space. Could someone explain the process of how we prove that for a simplicial complex $X$ , how $\pi_1(X)$ and $\pi_1(|X|)$ are isomorphic?
2026-03-27 11:48:01.1774612081
Fundamental Groups of a Simplicial Complex and the Underlying Space
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