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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.
I have started editing at Thomâ€™s theorem. So far it has just the definition of the bordism ring, the statement of the theorem and some literature.
I have added a bunch of infrastructure (section Ingredients) and then spelled out in detail the proof (here) that the Pontrjagin-Thom construction first of all yields a well-defined function of sets
$\left\{ {n\text{-}manifolds\;with\;stable} \atop {normal\;\mathcal{B}\text{-}structure} \right\} \longrightarrow \pi_n(M\mathcal{B}) \,.$1 to 3 of 3