What's the difference between $\blacksquare$ and $\Box$ in the end of a proof? I've seen both and I never got the difference.
2026-04-23 06:20:17.1776925217
Mathematical notation: end of a proof
65 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in NOTATION
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