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I am starting to study about triangulations in my algebraic topology course. We have seen the triangulation of the sphere, the closed disc and so on. Intuitively it's ok, however I couldn't find any rigorous proof of these examples.

Anyone knows any book, site or resource to find them? Thank you very much.

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    @Berci For example we know that the closed disk can be triangulated, i.e., we can find a homeomorphism between the closed disk and a polyhedron which is a simplicial complex with the subspace topology inherited from $\mathbb R^n$. I couldn't find any resource with the details of this prove.2012-10-13

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