Author: Urs Format: MarkdownItexthe term "pre-spectrum" used to re-direct to *[[spectrum]]* and was explained a little more at *[[sequential spectrum]]*. Am giving the term its own page now, for better clarification, prompted by the discussion in another thread ([here](https://nforum.ncatlab.org/discussion/14539/sequential-spectrum-type/?Focus=99701#Comment_99701))
<a href="https://ncatlab.org/nlab/revision/pre-spectrum/1">v1</a>, <a href="https://ncatlab.org/nlab/show/pre-spectrum">current</a>
the term “pre-spectrum” used to re-direct to spectrum and was explained a little more at sequential spectrum. Am giving the term its own page now, for better clarification, prompted by the discussion in another thread (here)