Mutsara 1: Izvi zvinoreva kuti kuenzana kwehomotopic pakati peM, W uye N ndeye homotopically C-isomorphism. Mutsara 2: Izvi zvinoreva kuti kuenzana kwehomotopic pakati peM, W uye N ihomotopy yeC-isomorphism. Mubvunzo: Mutsara wokutanga nomutsara wechipiri unoreva chinhu chimwe chete here? Hungu kana kuti Aiwa?
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