# Problem 14.4b1.4

Closed string degeneracies | A First Course in String Theory

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What is the meaning of “With $a = 1, ..., 8$ and $\bar b = \bar 1, ..., \bar 8$, …”?

— Me@2015.09.14 12:11 PM

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p.315 “Explicitly, the eight states $| R_a \rangle, a = 1, 2, ..., 8$, with an even number of creation operators are … ”

p.316 “The eight states $|R_{\bar{a}} \rangle, \bar a = \bar 1, \bar 2, ..., \bar 8$, with an odd number of creation operators are … ”

— Me@2018-05-24 11:41:34 AM

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