Every map into a contractible space is nullhomotopic.Suggest a slogan
Let \(X\) be a contractible space and \(Y\) any space. Then every continuous map \(f\colon Y \to X\) is nullhomotopic.
Maps into contractible spaces are nullhomotopic
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Let \(X\) be a contractible space and \(Y\) any space. Then every continuous map \(f\colon Y \to X\) is nullhomotopic.