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The Poincaré-Miranda theorem. (English) Zbl 0891.47040
The author makes some interesting remarks on Brouwer’s fixed point theorem, Sperner’s combinatorial lemma, and Poincaré’s “higher-dimensional” intermediate value theorem in their historical contexts.

MSC:
47H10 Fixed-point theorems
54H25 Fixed-point and coincidence theorems (topological aspects)
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