Reference for Yoma 4:11
ולאו קל וחומר הוא השתא דבר שאין קדושה לפניו בעי פרישה דבר שיש קדושה לפניו לא כל שכן אמר רב משרשיא לא הזה כתיב כזה
because there would be a service of only one day? - One may infer [laws concerning] a day which is not immediately preceded by another [festival] sanctity<span class="x" onmousemove="('comment',' The Day of Atonement.');"><sup>28</sup></span> from another day,<span class="x" onmousemove="('comment',' I.e., the eighth day of the Consecration, v. Lev. IX, 1ff.');"><sup>29</sup></span> which similarly is not preceded by other [festival] sanctity,<span class="x" onmousemove="('comment',' I.e., the eighth day of the Consecration, v. Lev. IX, 1ff.');"><sup>29</sup></span> but one may not infer for a day preceded by [festival] Sanctity<span class="x" onmousemove="('comment',' Shemini Azereth is preceded by the seven days of Sukkoth.');"><sup>32</sup></span>