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55P99 - Algebraic topology :: Homotopy theory :: Miscellaneous

equivalent statements to statement that sphere is not contractible owned by joking every map into sphere which is not onto is nullhomotopic owned by joking functorial morphism owned by bci1 fundamental groupoid owned by CWoo fundamental groupoid functors owned by bci1 generalized Fourier transform owned by bci1 homological complex of topological vector spaces owned by bci1 homotopy category owned by bci1 homotopy with a contractible domain owned by joking
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