Homotopy Type Theory spectrum > history (Rev #4, changes)

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Idea

Definition

A prespectrum spectrum is (or a sequence ofpointed types?$\Omega$ -$E: \mathbb{Z} \to \mathcal{U}_*$spectrum ) and is a sequence of pointed maps$e : (n : \mathbb{Z}) \to E_n \to \Omega E_{n+1}$prespectrum . Typically a prespectrum is denoted$E$ when in it which is each clear. pointed map$e_n$ is an equivalence.