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Tags
+-SH dead source46902 +-SH safe2205747 +-SH artist:reddgeist19 +-SH twilight sparkle362291 +-SH human252865 +-SH g42060874 +-SH book44454 +-SH breasts399542 +-SH busty twilight sparkle16741 +-SH chalkboard3696 +-SH classroom2257 +-SH cleavage47733 +-SH curvy10272 +-SH fancy mathematics264 +-SH female1838310 +-SH glasses90806 +-SH high res409712 +-SH humanized121230 +-SH math987 +-SH school2449 +-SH solo1451687 +-SH teacher1254
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Quantum mechanics, from the presence of the h-bar and the operators. Can’t tell precisely.